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Coomassie brilliant blue R-250

Also known as: Brilliant Blue R, Acid Blue 83, C.I. Acid Blue 83, Acid Blue 6B, Brilliant Blue 6B, Acid Brilliant Cyanine 6B, Brilliant Indocyanine 6B, PAGE BLUE 83, SERVA BLUE R, CBB R-250, Solar Cyanine 6B, PhastGel Blue R, Sodium 3-({[(1Z,4Z)-4-({4-[(4-ethoxyphenyl)amino]phenyl}{4-[ethyl(3-sulfonatobenzyl)amino]phenyl}methylidene)cyclohexa-2,5-dien-1-ylidene](ethyl)ammonio}methyl)benzenesulfonate

Coomassie brilliant blue R-250 (CAS 6104-59-2) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C45H44N3NaO7S2 and a molecular weight of 825.966 g/mol. Key properties include a melting point of 174-180 °C and a flash point of 14 °C. It is classified under GHS with signal word Warning and hazard statements H226 — Flammable liquid and vapour, H315 — Causes skin irritation and H319 — Causes serious eye irritation. It is listed by 1 supplier; request a quote for pricing. Record last updated Aug 21, 2026.

CAS No.
6104-59-2
Jingsj CID
J-1108755-1
Molecular Formula
C45H44N3NaO7S2
Molecular Weight
825.966 g/mol
Category
Organic Compounds
Last updated
8/21/2026
Made to Order

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Physicochemical Properties

Melting Point174-180 °C
Flash Point14 °C
Exact Mass825.251831
PSA158.67000
LogP10.49970

GHS Safety & Compliance

Flammable / IrritantSignal word: Warning
  • H226 — Flammable liquid and vapour
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation

Activity & Biological Data

Additional Information[1]. Krause RGE, et al. Crystal violet stains proteins in SDS-PAGE gels and zymograms. Anal Biochem. 2019;566:107-115.

Customs & Trade Information

HS Code32041200

Frequently Asked Questions

What is the CAS number of Coomassie brilliant blue R-250?

The CAS number of Coomassie brilliant blue R-250 is 6104-59-2.

What are the molecular formula and molecular weight of Coomassie brilliant blue R-250?

Coomassie brilliant blue R-250 has molecular formula C45H44N3NaO7S2 and molecular weight 825.966 g/mol.

Which suppliers offer Coomassie brilliant blue R-250?

1 supplier(s) listed; request a quote for pricing.

Is Coomassie brilliant blue R-250 hazardous?

Coomassie brilliant blue R-250 has GHS signal word Warning and hazard statements H226 — Flammable liquid and vapour; H315 — Causes skin irritation; H319 — Causes serious eye irritation.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "Coomassie brilliant blue R-250 (CAS 6104-59-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1108755-1 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.