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Alexa Fluor 350

CAS No.
200554-19-4
Chemical Name:
Alexa Fluor 350
Synonyms
AF 350;BF 350, SE;Alexa Fluor 350;AF350 NHS Ester;BP Fluor 350 NHS Ester;LumiDye AF350 NHS Ester;Alexa Fluor 350 NHS ester;350 NHS Ester(Succinimidyl Ester);Aladdin? 350 NHS Ester(Succinimidyl Ester);Adenosine 5′-(tetrahydrogen triphosphate), 3′-deoxy-, trisodium salt
CBNumber:
CB01401053
Molecular Formula:
C16H14N2O9S
Molecular Weight:
410.35
MDL Number:
MOL File:
200554-19-4.mol
MSDS File:
SDS
Last updated:2026-05-27 17:20:34

Alexa Fluor 350 Properties

Density 1.74±0.1 g/cm3(Predicted)
solubility Soluble in water, dimethyl sulfoxide, methanol
pka 0.46±0.20 Most Basic Temperature: 25°C
color Pale yellow precipitate2 or yellow/ orange solid
Appearance Gray yellow solid
ex/em 346/445 nm
ε(extinction coefficient) 19,000
Φ(quantum yield) 0.73
λmax 346nm (Buffer pH 7); 353nm (MeOH)
Major Application Poly(vinyl alcohol)coated microfluidic devices; selfassembled monolayers; silica particles/beads
Biological Applications Analyzing peptides; detecting mutations; detecting/identifying nucleic acids; detecting/isolating/purifying proteins; investigating location of phosphatidylinositol,bisphosphate (PI(,)P) in cell membranes; colloidal diagnostic devices; multiplex genetic analysis; as nucleic acid hybridization probe; useful for synthesizing nucleic acid,, peptides,

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

Alexa Fluor 350 price

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
ChemScene CS-1237643 BP Fluor 350 NHS ester 200554-19-4 1mg $301 2026-06-04 Buy
ChemScene CS-1237643 BP Fluor 350 NHS ester 200554-19-4 5mg $664 2026-06-04 Buy
ChemScene CS-1237643 BP Fluor 350 NHS ester 200554-19-4 10mg $1064 2026-06-04 Buy
aablocks AA01JN3E 7-Amino-3-(2-((2,5-dioxopyrrolidin-1-yl)oxy)-2-oxoethyl)-4-methyl-2-oxo-2H-chromene-6-sulfonic acid ≥90%(HPLC) 200554-19-4 1mg $320 2026-05-30 Buy
aablocks AA01JN3E 7-Amino-3-(2-((2,5-dioxopyrrolidin-1-yl)oxy)-2-oxoethyl)-4-methyl-2-oxo-2H-chromene-6-sulfonic acid ≥90%(HPLC) 200554-19-4 5mg $940 2026-05-30 Buy
Product number Packaging Price Buy
CS-1237643 1mg $301 Buy
CS-1237643 5mg $664 Buy
CS-1237643 10mg $1064 Buy
AA01JN3E 1mg $320 Buy
AA01JN3E 5mg $940 Buy

Alexa Fluor 350 Chemical Properties, Uses, Production

Chemical Properties

Appearance: Grayish yellow solid
ex/em: 346/445 nm
Extinction coefficient (ε): 19,000
Quantum yield (Φ): 0.73

Uses

BP Fluor 350 NHS ester is an amine reactive, water soluble, blue emitting dye used to specifically and efficiently modify primary amines at pH 7-9 to form stable covalent amide bonds[1].

Definition

ChEBI: Alexa Fluor 350 is a chromenone, a pyrrolidinone and an organosulfonic acid. It has a role as a fluorochrome.

References

[1] Khoury JT, et al. Pulsed fluorescence measurements of trapped molecular ions with zero background detection. J Am Soc Mass Spectrom. 2002 Jun;13(6):696-708. DOI:10.1016/S1044-0305(02)00364-1

Alexa Fluor 350 Preparation Products And Raw materials

Raw materials

Preparation Products

Alexa Fluor 350 Suppliers

Global Suppliers ( 21)
Supplier Tel Email Country ProdList Advantage
Shanghai Annengjian Biomedical Technology Co., LTD 021-68781987 13818305065 sales@energybiopharma.com China 788 58
Shanghai YuanYe Biotechnology Co., Ltd. 15026964105 2881489226@qq.com China 89667 60
Shenzhen Regent Biochemical Technology Co., Ltd. 0755-85201366 18938635012 sales@regentsciences.com China 9381 58
Henan Alfa Chemical Co., Ltd +8618339805032 sale03@alfachem.cn China 9872 58
Henan Weitesi Chemical Technology Co. LTD 0371-55135753 18003832934 3842570495@qq.com China 9992 58
Beijing Jin Ming Biotechnology Co., Ltd. 010-60605840 psaitong@jm-bio.com China 27626 58
Xi'an Kaixin Biotechnology Co., Ltd 029-68881181 13619217766 3495811982@qq.com China 2817 58
Changsha Hanchen Biotechnology Co., LTD 18175992585 wanglin@hanchibio.cn China 194 58
Shanghai Easy CDMO Co.,Ltd Info@easycdmo.com 13564957716 Info@easycdmo.com China 9999 58
mahaloong 028-81192082 18180560816 sales@mahaloong.com China 210 58
Alexa Fluor 350 BF 350, SE 2H-1-Benzopyran-3-acetic acid, 7-amino-4-methyl-2-oxo-6-sulfo-, 3-(2,5-dioxo-1-pyrrolidinyl) ester Alexa Fluor 350 NHS ester AF350 NHS Ester Aladdin? 350 NHS Ester(Succinimidyl Ester) BP Fluor 350 NHS Ester Adenosine 5′-(tetrahydrogen triphosphate), 3′-deoxy-, trisodium salt LumiDye AF350 NHS Ester AF 350 350 NHS Ester(Succinimidyl Ester) 200554-19-4 C16H14N2O9S