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Sulforhodamine B sodium salt

Also known as: Acid Red 52, Sulforhodamine B, Sulforhodamine B monosodium salt, Kiton Red S, C.I. 45100, Xylene Red B, Lissamine Rhodamine B, Rhodamine 200 S sodium salt

Sulforhodamine B sodium salt (CAS 3520-42-1) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C27H29N2NaO7S2 and a molecular weight of 580.65 g/mol. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
3520-42-1
Jingsj CID
J-23055-5
Molecular Formula
C27H29N2NaO7S2
Molecular Weight
580.65 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

PSA150.78000
LogP7.81310
Additional Propertymethanol: 1 mg/mL

GHS Safety & Compliance

IrritantSignal word: Warning
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation

Activity & Biological Data

Additional Information[1]. Orellana EA, et al. Sulforhodamine B (SRB) Assay in Cell Culture to Investigate Cell Proliferation. Bio Protoc. 2016 Nov 5;6(21). pii: e1984.

Customs & Trade Information

HS Code2921499090
Summary2921499090 other aromatic monoamines and their derivatives; salts thereof VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0%

Frequently Asked Questions

What is the CAS number of Sulforhodamine B sodium salt?

The CAS number of Sulforhodamine B sodium salt is 3520-42-1.

What are the molecular formula and molecular weight of Sulforhodamine B sodium salt?

Sulforhodamine B sodium salt has molecular formula C27H29N2NaO7S2 and molecular weight 580.65 g/mol.

Is Sulforhodamine B sodium salt hazardous?

Sulforhodamine B sodium salt has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.

What are the upstream and downstream products of Sulforhodamine B sodium salt?

For Sulforhodamine B sodium salt, Downstream Products: Lissamine Rhodamine B Sulfonyl Chloride.

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

Last updated:

How to cite: Jingsj. "Sulforhodamine B sodium salt (CAS 3520-42-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-23055-5 (accessed 2026-11-07).

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