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BIOTIN-4-FLUORESCEIN

CAS No.
1032732-74-3
Chemical Name:
BIOTIN-4-FLUORESCEIN
Synonyms
FITC-4-Biotin;5-FITC-4-Biotin-4;Biotin Impurity 30;BIOTIN-4-FLUORESCEIN;Biotin-4-Fluorescein (Green);Biotin-4-fluorescein *CAS 1032732-74-3*;(3aS,4S,6aR)-N-[2-[[(3',6'-Dihydroxy-3-oxospiro[isobenzofuran-1(3H),9'-[9H]xanthen]-5-yl)carbonyl]amino]ethyl]hexahydro-2-oxo-1H-thieno[3,4-d]imidazole-4-pentanamide;1H-Thieno[3,4-d]imidazole-4-pentanamide, N-[2-[[(3',6'-dihydroxy-3-oxospiro[isobenzofuran-1(3H),9'-[9H]xanthen]-5-yl)carbonyl]amino]ethyl]hexahydro-2-oxo-, (3aS,4S,6aR)-
CBNumber:
CB2174198
Molecular Formula:
C33H32N4O8S
Molecular Weight:
644.69
MDL Number:
MFCD03427760
MOL File:
Mol file
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-05-27 23:58:26

BIOTIN-4-FLUORESCEIN Properties

Boiling point 1038.0±65.0 °C(Predicted)
Density 1.55±0.1 g/cm3(Predicted)
storage temp. room temp
pka 9.33±0.20(Predicted)
form powder
color light orange to very dark orange
light yellow to very dark yellow
ε(extinction coefficient) ≥70 at 491-497nm in phosphate buffer at 0.05M
Major Application diagnostic assay manufacturing
hematology
histology
InChIKey UROXVNHIYQXTRA-LFERIPGTSA-N
SMILES OC(=O)c1cc(ccc1C2=C3C=CC(=O)C=C3Oc4ccc(O)cc24)C(=O)NCCNC(=O)CCCC[C@@H]5SC[C@@H]6NC(=O)N[C@H]56
UNSPSC Code 12171500
NACRES NA.47

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H302-H315-H319-H335
Precautionary statements  P280-P305+P351+P338
PPE Eyeshields, Gloves, type N95 (US)
WGK Germany  WGK 3
HS Code  29337900
Storage Class 11 - Combustible Solids

BIOTIN-4-FLUORESCEIN price More Price(13)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich B9431 Biotin-4-Fluorescein 1032732-74-3 5MG $578 2026-04-30 Buy
Usbiological 266924 Biotin-4-fluorescein Asreported 5mg $375 2026-06-03 Buy
Usbiological 266924 Biotin-4-fluorescein Asreported 10mg $531 2026-06-03 Buy
Usbiological 266924 Biotin-4-fluorescein Asreported 20mg $785 2026-06-03 Buy
Usbiological 266924 Biotin-4-fluorescein Asreported 50mg $1346 2026-06-03 Buy
Product number Packaging Price Buy
B9431 5MG $578 Buy
266924 5mg $375 Buy
266924 10mg $531 Buy
266924 20mg $785 Buy
266924 50mg $1346 Buy

BIOTIN-4-FLUORESCEIN Chemical Properties,Uses,Production

Uses

Biotin-4-Fluorescein is used to quantitate biotin binding sites. Biotin-4-Fluorescein is a reagent that binds to avidin more readily than conventional fluorescein biotin.

Biological Activity

Biotin-fluorescein is mainly used for the assay of biotin-interaction sites in avidin and streptavidin. Binding of biotin-4-fluorescein results in strong quenching, which is used for measuring the concentration of (strept)avidin.

BIOTIN-4-FLUORESCEIN Preparation Products And Raw materials

Raw materials

Preparation Products

Global( 75)Suppliers
Supplier Tel Email Country ProdList Advantage
J & K SCIENTIFIC LTD. 18210857532 18210857532 jkinfo@jkchemical.com China 96815 76
Beijing Ouhe Technology Co., Ltd 13552068683 13522913783 2355560935@qq.com China 11777 60
Chemsky (shanghai) International Co.,Ltd 021-50135380 shchemsky@sina.com China 15350 60
Tianjin heowns Biochemical Technology Co., Ltd. 400 638 7771 sales@heowns.com China 14412 57
Shanghai TaoSu Biochemical Technology Co., Ltd. 021-33632979 info@tsbiochem.com China 8039 58
Shanghai YuanYe Biotechnology Co., Ltd. 15026964105 2881489226@qq.com China 89667 60
Zhengzhou Huiju Chemical Co., Ltd. 0371-55900031 18137872243 3927209986@qq.com China 9997 55
Xi'an Confluore Biological Technology Co., Ltd. +86-156-80926068 +86-15680926068 1924344760@qq.com China 4229 58
Tianjin heowns Biochemical Technology Co., Ltd. 400-6387771-6039 18920764717 sales@heowns.com China 24636 60
Shenzhen GeneSeqTools Bioscience & Technology Co. Ltd. 0755-23251735 13302967066 sales@geneseqtools.com China 1466 58

View Lastest Price from BIOTIN-4-FLUORESCEIN manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
Biotin-4-Fluorescein pictures 2025-06-07 Biotin-4-Fluorescein
1032732-74-3
50mg >98.00% 50mg Xian confluore Biological Technology Co., Ltd.
BIOTIN-4-FLUORESCEIN (3aS,4S,6aR)-N-[2-[[(3',6'-Dihydroxy-3-oxospiro[isobenzofuran-1(3H),9'-[9H]xanthen]-5-yl)carbonyl]amino]ethyl]hexahydro-2-oxo-1H-thieno[3,4-d]imidazole-4-pentanamide Biotin-4-fluorescein *CAS 1032732-74-3* 5-FITC-4-Biotin-4 1H-Thieno[3,4-d]imidazole-4-pentanamide, N-[2-[[(3',6'-dihydroxy-3-oxospiro[isobenzofuran-1(3H),9'-[9H]xanthen]-5-yl)carbonyl]amino]ethyl]hexahydro-2-oxo-, (3aS,4S,6aR)- Biotin Impurity 30 FITC-4-Biotin Biotin-4-Fluorescein (Green) 1032732-74-3 C33H32N4O8S Aromatics, Biotin Derivatives, Fluorescent Labels & Indicators, Heterocycles, Pharmaceuticals, Intermediates & Fine Chemicals Aromatics Biotin Derivatives Fluorescent Labels & Indicators Heterocycles Intermediates & Fine Chemicals Pharmaceuticals BFluorescent Probes, Labels, Particles and Stains Biotin Conjugates Fluorescent Conjugates Stains and Dyes Stains&Dyes, A to