fluorescein

Impurities - A fluorophore compound (a fluorescent chemical compound ), which is used as a fluorescent tracer . This synthetic organic compound is used in microscopy, dye laser and forensics. Also used as color additive. Reference standards of Fluorescein API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.

stdClass Object
(
    [pname] => Fluorescein
    [catalogue_number] => PA 06 32000
    [category_ids] => ,75,76,78,70,82,
    [chemical_name] => 
    [weight] => 332.31
    [form] => C20H12O5
    [cas] => 2321-07-5
    [pslug] => 2321-07-5-fluorescein-api-pa0632000
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PA 06 32000
PA 06 32000

Fluorescein

  • Catalogue No.:PA 06 32000

  • CAS :

    2321-07-5

  • Molecular Formula : C20H12O5

  • Molecular Weight : 332.31

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stdClass Object
(
    [pname] => Fluorescein - Impurity B
    [catalogue_number] => PA 06 32020
    [category_ids] => ,75,76,78,70,82,
    [chemical_name] => 
    [weight] => 166.13
    [form] => C8H6O4
    [cas] => 88-99-3
    [pslug] => 88-99-3-fluorescein-impurity-b-pa0632020
    [latest_product] => 0
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PA 06 32020
PA 06 32020

Fluorescein - Impurity B

  • Catalogue No.:PA 06 32020

  • CAS :

    88-99-3

  • Molecular Formula : C8H6O4

  • Molecular Weight : 166.13

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Similar products pharmaffiliates 
stdClass Object
(
    [pname] => Diacetylfluorescein
    [catalogue_number] => PA 06 32650
    [category_ids] => ,75,76,78,70,82,
    [chemical_name] => 
    [weight] => 416.38
    [form] => C24H16O7
    [cas] => 596-09-8
    [pslug] => 596-09-8-diacetylfluorescein-pa0632650
    [latest_product] => 0
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PA 06 32650
PA 06 32650

Diacetylfluorescein

  • Catalogue No.:PA 06 32650

  • CAS :

    596-09-8

  • Molecular Formula : C24H16O7

  • Molecular Weight : 416.38

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Details 
stdClass Object
(
    [pname] => Fluorescein Sodium Salt
    [catalogue_number] => PA 06 32660
    [category_ids] => ,75,76,78,70,82,
    [chemical_name] => 
    [weight] => 376.27
    [form] => C20H10Na2O5
    [cas] => 518-47-8
    [pslug] => 518-47-8-fluorescein-sodium-salt-pa0632660
    [latest_product] => 0
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PA 06 32660
PA 06 32660

Fluorescein Sodium Salt

  • Catalogue No.:PA 06 32660

  • CAS :

    518-47-8

  • Molecular Formula : C20H10Na2O5

  • Molecular Weight : 376.27

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Similar products pharmaffiliates 
stdClass Object
(
    [pname] => 5-(6)-Carboxynaphthofluoroscein N-Succinimidyl Ester
    [catalogue_number] => PA 06 32670
    [category_ids] => ,75,78,70,
    [chemical_name] => 
    [weight] => 573.51
    [form] => C33H19NO9
    [cas] => 150347-58-3
    [pslug] => 150347-58-3-5-6-carboxynaphthofluoroscein-n-succinimidyl-ester-pa0632670
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PA 06 32670
PA 06 32670

5-(6)-Carboxynaphthofluoroscein N-Succinimidyl Ester

  • Catalogue No.:PA 06 32670

  • CAS :

    150347-58-3

  • Molecular Formula : C33H19NO9

  • Molecular Weight : 573.51

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Details 
stdClass Object
(
    [pname] => Fluorescein - Impurity C
    [catalogue_number] => PA 06 32030
    [category_ids] => ,75,76,78,70,82,
    [chemical_name] => 
    [weight] => 258.23
    [form] => C14H10O5
    [cas] => 2513-33-9
    [pslug] => 2513-33-9-fluorescein-impurity-c-pa0632030
    [latest_product] => 0
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PA 06 32030
PA 06 32030

Fluorescein - Impurity C

  • Catalogue No.:PA 06 32030

  • CAS :

    2513-33-9

  • Molecular Formula : C14H10O5

  • Molecular Weight : 258.23

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stdClass Object
(
    [pname] => 2',7'-Dichlorofluorescein
    [catalogue_number] => PA 06 0321000
    [category_ids] => ,78,75,70,76,82,
    [chemical_name] => 
    [weight] => 401.2
    [form] => C20H10Cl2O5
    [cas] => 76-54-0
    [pslug] => 76-54-0-2-7-dichlorofluorescein-pa060321000
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PA 06 0321000
PA 06 0321000

2',7'-Dichlorofluorescein

  • Catalogue No.:PA 06 0321000

  • CAS :

    76-54-0

  • Molecular Formula : C20H10Cl2O5

  • Molecular Weight : 401.2

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Details 
stdClass Object
(
    [pname] => Sodium 2-(4,5-diiodo-6-oxido-3-oxo-3H-xanthen-9-yl)benzoate
    [catalogue_number] => PA 06 0321001
    [category_ids] => ,75,76,78,70,82,
    [chemical_name] => 
    [weight] => 629.07
    [form] => C20H8I2Na2O5
    [cas] => 6371-82-0
    [pslug] => 6371-82-0-sodium-2-4-5-diiodo-6-oxido-3-oxo-3h-xanthen-9-yl-benzoate-pa060321001
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PA 06 0321001
PA 06 0321001

Sodium 2-(4,5-diiodo-6-oxido-3-oxo-3H-xanthen-9-yl)benzoate

  • Catalogue No.:PA 06 0321001

  • CAS :

    6371-82-0

  • Molecular Formula : C20H8I2Na2O5

  • Molecular Weight : 629.07

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Details 
stdClass Object
(
    [pname] => 1,2,3,6-Tetrahydrophthalimide
    [catalogue_number] => PA 06 0321002
    [category_ids] => ,75,76,78,70,82,
    [chemical_name] => 
    [weight] => 151.17
    [form] => C8H9NO2
    [cas] => 85-40-5
    [pslug] => 85-40-5-1-2-3-6-tetrahydrophthalimide-pa060321002
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PA 06 0321002
PA 06 0321002

1,2,3,6-Tetrahydrophthalimide

  • Catalogue No.:PA 06 0321002

  • CAS :

    85-40-5

  • Molecular Formula : C8H9NO2

  • Molecular Weight : 151.17

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Details 
stdClass Object
(
    [pname] => 2',4',5'-Triiodofluorescein
    [catalogue_number] => PA 06 0321003
    [category_ids] => ,75,76,78,70,82,
    [chemical_name] => 
    [weight] => 710
    [form] => C20H9I3O5
    [cas] => 56254-06-9
    [pslug] => 56254-06-9-2-4-5-triiodofluorescein-pa060321003
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PA 06 0321003
PA 06 0321003

2',4',5'-Triiodofluorescein

  • Catalogue No.:PA 06 0321003

  • CAS :

    56254-06-9

  • Molecular Formula : C20H9I3O5

  • Molecular Weight : 710

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Details 
stdClass Object
(
    [pname] => 3',6'-Dihydroxy-2',4',7'-triiodo-3H-spiro[isobenzofuran-1,9'-xanthen]-3-one
    [catalogue_number] => PA 06 0321004
    [category_ids] => ,75,76,78,70,82,
    [chemical_name] => 
    [weight] => 710
    [form] => C20H9I3O5
    [cas] => 83498-90-2
    [pslug] => 83498-90-2-3-6-dihydroxy-2-4-7-triiodo-3h-spiro-isobenzofuran-1-9-xanthen-3-one-pa060321004
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PA 06 0321004
PA 06 0321004

3',6'-Dihydroxy-2',4',7'-triiodo-3H-spiro[isobenzofuran-1,9'-xanthen]-3-one

  • Catalogue No.:PA 06 0321004

  • CAS :

    83498-90-2

  • Molecular Formula : C20H9I3O5

  • Molecular Weight : 710

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Details 
stdClass Object
(
    [pname] => Diiodofluorescein Disodium Salt
    [catalogue_number] => PA 06 0321005
    [category_ids] => ,75,76,78,70,82,
    [chemical_name] => 
    [weight] => 628.07
    [form] => C20H8I2Na2O5
    [cas] => 33239-19-9
    [pslug] => 33239-19-9-diiodofluorescein-disodium-salt-pa060321005
    [latest_product] => 0
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PA 06 0321005
PA 06 0321005

Diiodofluorescein Disodium Salt

  • Catalogue No.:PA 06 0321005

  • CAS :

    33239-19-9

  • Molecular Formula : C20H8I2Na2O5

  • Molecular Weight : 628.07

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Details 
stdClass Object
(
    [pname] => Sodium 2'-iodo-3-oxo-3H-spiro[isobenzofuran-1,9'-xanthene]-3',6'-bis(olate)
    [catalogue_number] => PA 06 0321006
    [category_ids] => ,75,76,78,70,82,
    [chemical_name] => 
    [weight] => 502.17
    [form] => C20H9INa2O5
    [cas] => 52010-85-2
    [pslug] => 52010-85-2-sodium-2-iodo-3-oxo-3h-spiro-isobenzofuran-1-9-xanthene-3-6-bis-olate-pa060321006
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PA 06 0321006
PA 06 0321006

Sodium 2'-iodo-3-oxo-3H-spiro[isobenzofuran-1,9'-xanthene]-3',6'-bis(olate)

  • Catalogue No.:PA 06 0321006

  • CAS :

    52010-85-2

  • Molecular Formula : C20H9INa2O5

  • Molecular Weight : 502.17

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Details 
stdClass Object
(
    [pname] => 3',6'-Dihydroxy-4'-iodo-3H-spiro[isobenzofuran-1,9'-xanthen]-3-one, Disodium Salt
    [catalogue_number] => PA 06 0321008
    [category_ids] => ,75,76,78,70,82,
    [chemical_name] => 
    [weight] => 504.19
    [form] => C20H11INa2O5
    [cas] => 52010-86-3
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PA 06 0321008
PA 06 0321008

3',6'-Dihydroxy-4'-iodo-3H-spiro[isobenzofuran-1,9'-xanthen]-3-one, Disodium Salt

  • Catalogue No.:PA 06 0321008

  • CAS :

    52010-86-3

  • Molecular Formula : C20H11INa2O5

  • Molecular Weight : 504.19

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Details 
stdClass Object
(
    [pname] => 2-(2,4-Dihydroxy-3,5-diiodobenzoyl)benzoic Acid
    [catalogue_number] => PA 06 0321007
    [category_ids] => ,75,76,78,70,82,
    [chemical_name] => 
    [weight] => 510.02
    [form] => C14H8I2O5
    [cas] => 3480-21-5
    [pslug] => 3480-21-5-2-2-4-dihydroxy-3-5-diiodobenzoyl-benzoic-acid-pa060321007
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PA 06 0321007
PA 06 0321007

2-(2,4-Dihydroxy-3,5-diiodobenzoyl)benzoic Acid

  • Catalogue No.:PA 06 0321007

  • CAS :

    3480-21-5

  • Molecular Formula : C14H8I2O5

  • Molecular Weight : 510.02

Enquire
Details 
stdClass Object
(
    [pname] => 6'-Hydroxy-3H-spiro[isobenzofuran-1,9'-xanthene]-2',3,3'-trione
    [catalogue_number] => PA 06 0321009
    [category_ids] => ,75,76,78,70,82,
    [chemical_name] => 
    [weight] => 346.29
    [form] => C20H10O6
    [cas] => NA
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PA 06 0321009
PA 06 0321009

6'-Hydroxy-3H-spiro[isobenzofuran-1,9'-xanthene]-2',3,3'-trione

  • Catalogue No.:PA 06 0321009

  • CAS :

    NA

  • Molecular Formula : C20H10O6

  • Molecular Weight : 346.29

Enquire
Details 
stdClass Object
(
    [pname] => 2-(2,3,6-Trioxo-2,6-dihydro-3H-xanthen-9-yl)benzoic Acid
    [catalogue_number] => PA 06 0321010
    [category_ids] => ,75,76,78,70,82,
    [chemical_name] => 
    [weight] => 346.29
    [form] => C20H10O6
    [cas] => NA
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PA 06 0321010
PA 06 0321010

2-(2,3,6-Trioxo-2,6-dihydro-3H-xanthen-9-yl)benzoic Acid

  • Catalogue No.:PA 06 0321010

  • CAS :

    NA

  • Molecular Formula : C20H10O6

  • Molecular Weight : 346.29

Enquire
Details 
stdClass Object
(
    [pname] => Diiodofluorescein
    [catalogue_number] => PA 06 0321011
    [category_ids] => ,75,76,78,70,82,
    [chemical_name] => 
    [weight] => 584.1
    [form] => C20H10I2O5
    [cas] => 31395-16-1
    [pslug] => 31395-16-1-diiodofluorescein-pa060321011
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PA 06 0321011
PA 06 0321011

Diiodofluorescein

  • Catalogue No.:PA 06 0321011

  • CAS :

    31395-16-1

  • Molecular Formula : C20H10I2O5

  • Molecular Weight : 584.1

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Details 
stdClass Object
(
    [pname] => Fluorescein - Impurity B (Sodium Salt)
    [catalogue_number] => PA 06 0320021
    [category_ids] => ,75,76,78,70,82,
    [chemical_name] => 
    [weight] => 166.13 . X(22.99)
    [form] => C8H6O4 . x(Na)
    [cas] => 10197-71-4
    [pslug] => 10197-71-4-fluorescein-impurity-b-sodium-salt-pa060320021
    [latest_product] => 0
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PA 06 0320021
PA 06 0320021

Fluorescein - Impurity B (Sodium Salt)

  • Catalogue No.:PA 06 0320021

  • CAS :

    10197-71-4

  • Molecular Formula : C8H6O4 . x(Na)

  • Molecular Weight : 166.13 . X(22.99)

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Details
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stdClass Object
(
    [pname] => Thiourea, N-[2-[2-(2-azidoethoxy)ethoxy]ethyl]-N′-(3′,6′-dihydroxy-3-oxospiro[isobenzofuran-1(3H),9′-[9H]xanthen]-5-yl)
    [catalogue_number] => PA 06 0321012
    [category_ids] => ,171,75,76,78,70,82,
    [chemical_name] => 
    [weight] => 563.59
    [form] => C27H25N5O7S
    [cas] => 1146195-72-3
    [pslug] => 1146195-72-3-thiourea-n-2-2-2-azidoethoxy-ethoxy-ethyl-n-3-6-dihydroxy-3-oxospiro-isobenzofuran-1-3h-9-9h-xanthen-5-yl-pa060321012
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PA 06 0321012
PA 06 0321012

Thiourea, N-[2-[2-(2-azidoethoxy)ethoxy]ethyl]-N′-(3′,6′-dihydroxy-3-oxospiro[isobenzofuran-1(3H),9′-[9H]xanthen]-5-yl)

  • Catalogue No.:PA 06 0321012

  • CAS :

    1146195-72-3

  • Molecular Formula : C27H25N5O7S

  • Molecular Weight : 563.59

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Details 
stdClass Object
(
    [pname] => 1-((3',6'-Dihydroxy-3-oxo-3H-spiro[isobenzofuran-1,9'-xanthen]-5-yl)amino)-1-thioxo-5,8,11,14,17,20-hexaoxa-2-azatricosan-23-oic acid
    [catalogue_number] => PA 06 0321017
    [category_ids] => ,75,76,78,70,82,171,
    [chemical_name] => 
    [weight] => 742.79
    [form] => C36H42N2O13S
    [cas] => 2055014-69-0
    [pslug] => 2055014-69-0-1-3-6-dihydroxy-3-oxo-3h-spiro-isobenzofuran-1-9-xanthen-5-yl-amino-1-thioxo-5-8-11-14-17-20-hexaoxa-2-azatricosan-23-oic-acid-pa060321017
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PA 06 0321017
PA 06 0321017

1-((3',6'-Dihydroxy-3-oxo-3H-spiro[isobenzofuran-1,9'-xanthen]-5-yl)amino)-1-thioxo-5,8,11,14,17,20-hexaoxa-2-azatricosan-23-oic acid

  • Catalogue No.:PA 06 0321017

  • CAS :

    2055014-69-0

  • Molecular Formula : C36H42N2O13S

  • Molecular Weight : 742.79

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Details 
stdClass Object
(
    [pname] => Fluorescein-PEG6-bis-NHS ester
    [catalogue_number] => PA 06 0321018
    [category_ids] => ,75,76,78,70,82,171,
    [chemical_name] => 
    [weight] => 938.96
    [form] => C44H50N4O17S
    [cas] => 2055105-59-2
    [pslug] => 2055105-59-2-fluorescein-peg6-bis-nhs-ester-pa060321018
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PA 06 0321018
PA 06 0321018

Fluorescein-PEG6-bis-NHS ester

  • Catalogue No.:PA 06 0321018

  • CAS :

    2055105-59-2

  • Molecular Formula : C44H50N4O17S

  • Molecular Weight : 938.96

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Details 
stdClass Object
(
    [pname] => 1-Azido-9-((3',6'-dihydroxy-3-oxo-3H-spiro[isobenzofuran-1,9'-xanthen]-5-yl)carbamothioyl)-3,6,12,15,18-pentaoxa-9-azahenicosan-21-oic acid
    [catalogue_number] => PA 06 0321019
    [category_ids] => ,75,76,78,70,82,171,
    [chemical_name] => 
    [weight] => 767.81
    [form] => C36H41N5O12S
    [cas] => 2086689-04-3
    [pslug] => 2086689-04-3-1-azido-9-3-6-dihydroxy-3-oxo-3h-spiro-isobenzofuran-1-9-xanthen-5-yl-carbamothioyl-3-6-12-15-18-pentaoxa-9-azahenicosan-21-oic-acid-pa060321019
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PA 06 0321019
PA 06 0321019

1-Azido-9-((3',6'-dihydroxy-3-oxo-3H-spiro[isobenzofuran-1,9'-xanthen]-5-yl)carbamothioyl)-3,6,12,15,18-pentaoxa-9-azahenicosan-21-oic acid

  • Catalogue No.:PA 06 0321019

  • CAS :

    2086689-04-3

  • Molecular Formula : C36H41N5O12S

  • Molecular Weight : 767.81

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Details 
stdClass Object
(
    [pname] => 1-Azido-12-((3',6'-dihydroxy-3-oxo-3H-spiro[isobenzofuran-1,9'-xanthen]-5-yl)carbamothioyl)-3,6,9,15,18,21-hexaoxa-12-azatetracosan-24-oic acid
    [catalogue_number] => PA 06 0321020
    [category_ids] => ,75,76,78,70,82,171,
    [chemical_name] => 
    [weight] => 811.86
    [form] => C38H45N5O13S
    [cas] => 2100306-50-9
    [pslug] => 2100306-50-9-1-azido-12-3-6-dihydroxy-3-oxo-3h-spiro-isobenzofuran-1-9-xanthen-5-yl-carbamothioyl-3-6-9-15-18-21-hexaoxa-12-azatetracosan-24-oic-acid-pa060321020
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PA 06 0321020
PA 06 0321020

1-Azido-12-((3',6'-dihydroxy-3-oxo-3H-spiro[isobenzofuran-1,9'-xanthen]-5-yl)carbamothioyl)-3,6,9,15,18,21-hexaoxa-12-azatetracosan-24-oic acid

  • Catalogue No.:PA 06 0321020

  • CAS :

    2100306-50-9

  • Molecular Formula : C38H45N5O13S

  • Molecular Weight : 811.86

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Details 
stdClass Object
(
    [pname] => N-(Azido-PEG3)-N-Fluorescein-PEG4-acid
    [catalogue_number] => PA 06 0321021
    [category_ids] => ,75,76,78,70,82,171,
    [chemical_name] => 
    [weight] => 855.91
    [form] => C40H49N5O14S
    [cas] => 2100306-72-5
    [pslug] => 2100306-72-5-n-azido-peg3-n-fluorescein-peg4-acid-pa060321021
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PA 06 0321021
PA 06 0321021

N-(Azido-PEG3)-N-Fluorescein-PEG4-acid

  • Catalogue No.:PA 06 0321021

  • CAS :

    2100306-72-5

  • Molecular Formula : C40H49N5O14S

  • Molecular Weight : 855.91

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Details 
stdClass Object
(
    [pname] => Fluorescein-PEG5-Acid
    [catalogue_number] => PA 06 0321022
    [category_ids] => ,75,76,78,70,82,171,
    [chemical_name] => 
    [weight] => 698.74
    [form] => C34H38N2O12S
    [cas] => 2183440-40-4
    [pslug] => 2183440-40-4-fluorescein-peg5-acid-pa060321022
    [latest_product] => 0
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PA 06 0321022
PA 06 0321022

Fluorescein-PEG5-Acid

  • Catalogue No.:PA 06 0321022

  • CAS :

    2183440-40-4

  • Molecular Formula : C34H38N2O12S

  • Molecular Weight : 698.74

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Details 
stdClass Object
(
    [pname] => 2,5-Dioxopyrrolidin-1-yl 1-((3',6'-dihydroxy-3-oxo-3H-spiro[isobenzofuran-1,9'-xanthen]-5-yl)amino)-1-thioxo-5,8,11,14,17-pentaoxa-2-azaicosan-20-oate
    [catalogue_number] => PA 06 0321023
    [category_ids] => ,75,76,78,70,82,171,
    [chemical_name] => 
    [weight] => 795.81
    [form] => C38H41N3O14S
    [cas] => 2353409-62-6
    [pslug] => 2353409-62-6-2-5-dioxopyrrolidin-1-yl-1-3-6-dihydroxy-3-oxo-3h-spiro-isobenzofuran-1-9-xanthen-5-yl-amino-1-thioxo-5-8-11-14-17-pentaoxa-2-azaicosan-20-oate-pa060321023
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PA 06 0321023
PA 06 0321023

2,5-Dioxopyrrolidin-1-yl 1-((3',6'-dihydroxy-3-oxo-3H-spiro[isobenzofuran-1,9'-xanthen]-5-yl)amino)-1-thioxo-5,8,11,14,17-pentaoxa-2-azaicosan-20-oate

  • Catalogue No.:PA 06 0321023

  • CAS :

    2353409-62-6

  • Molecular Formula : C38H41N3O14S

  • Molecular Weight : 795.81

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Details 
stdClass Object
(
    [pname] => Thiofluorescein
    [catalogue_number] => PA 06 0321024
    [category_ids] => ,75,76,78,70,82,
    [chemical_name] => 
    [weight] => 364.43
    [form] => C20H12O3S2
    [cas] => 25319-73-7
    [pslug] => 25319-73-7-thiofluorescein-pa060321024
    [latest_product] => 0
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PA 06 0321024
PA 06 0321024

Thiofluorescein

  • Catalogue No.:PA 06 0321024

  • CAS :

    25319-73-7

  • Molecular Formula : C20H12O3S2

  • Molecular Weight : 364.43

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Details
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