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Fast Red TR salt 1,5-naphthalenedisulfonate salt

Also known as: Fast Red TR salt, Fast Red TR, Fast Red TR 1,5-naphthalenedisulfonate salt, 4-Chloro-2-methylbenzenediazonium 1,5-naphthalenedisulphonate, Benzenediazonium, 4-chloro-2-methyl-, 1,5-naphthalenedisulfonate (1:1), Azoic Diazo No. 11, C.I. 37085, Red trs salt, FastRedTRdiazosalt, Solid red - naphthalene sulfonic acid TR, 1,5-Naphthalenedisulfonate salt, MFCD00060226

Fast Red TR salt 1,5-naphthalenedisulfonate salt (CAS 51503-28-7) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C17H13ClN2O6S2 and a molecular weight of 440.88200 g/mol. It is classified under GHS with signal word Warning and hazard statements H371 — May cause damage to organs. No supplier offers are currently listed; request a quote. Record last updated Nov 2, 2026.

CAS No.
51503-28-7
Jingsj CID
J-1025409-1
Molecular Formula
C17H13ClN2O6S2
Molecular Weight
440.88200 g/mol
Category
Organic Acids
Last updated
11/2/2026
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Physicochemical Properties

Exact Mass592.004456
PSA187.46000
LogP9.07556
Storage Conditions−20°C

GHS Safety & Compliance

Health HazardSignal word: Warning
  • H371 — May cause damage to organs

Frequently Asked Questions

What is the CAS number of Fast Red TR salt 1,5-naphthalenedisulfonate salt?

The CAS number of Fast Red TR salt 1,5-naphthalenedisulfonate salt is 51503-28-7.

What are the molecular formula and molecular weight of Fast Red TR salt 1,5-naphthalenedisulfonate salt?

Fast Red TR salt 1,5-naphthalenedisulfonate salt has molecular formula C17H13ClN2O6S2 and molecular weight 440.88200 g/mol.

Is Fast Red TR salt 1,5-naphthalenedisulfonate salt hazardous?

Fast Red TR salt 1,5-naphthalenedisulfonate salt has GHS signal word Warning and hazard statements H371 — May cause damage to organs.

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

Last updated:

How to cite: Jingsj. "Fast Red TR salt 1,5-naphthalenedisulfonate salt (CAS 51503-28-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1025409-1 (accessed 2026-11-06).

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