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Acid Red 14

Also known as: Carmoisine, Azorubine, Chromotrope FB, C.I. 14720, Food Red 3, Mordant Blue 79, Brilliant Crimson Red, Pontacyl Rubine R, Disodium 4-hydroxy-3-[(4-sulfo-1-naphthalenyl)azo]-1-naphthalenesulfonate

Acid Red 14 (CAS 3567-69-9) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C20H12N2Na2O7S2 and a molecular weight of 502.428 g/mol. Key properties include a melting point of >300ºC and a flash point of >225℃. 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 Nov 3, 2026.

CAS No.
3567-69-9
Jingsj CID
J-6808-6
Molecular Formula
C20H12N2Na2O7S2
Molecular Weight
502.428 g/mol
Category
Organic Compounds
Last updated
11/3/2026

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Physicochemical Properties

Melting Point>300ºC
Flash Point>225℃
Exact Mass501.988129
PSA176.11000
LogP6.08380

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]. B Raposa, et al. Food additives: Sodium benzoate, potassium sorbate, azorubine, and tartrazine modify the expression of NFκB, GADD45α, and MAPK8 genes. Physiol Int. 2016 Sep;103(3):334-343. [2]. Latasha Leo, et al. Occurrence of azo food dyes and their effects on cellular inflammatory responses. Nutrition. 2018 Feb;46:36-40.

Frequently Asked Questions

What is the CAS number of Acid Red 14?

The CAS number of Acid Red 14 is 3567-69-9.

What are the molecular formula and molecular weight of Acid Red 14?

Acid Red 14 has molecular formula C20H12N2Na2O7S2 and molecular weight 502.428 g/mol.

Is Acid Red 14 hazardous?

Acid Red 14 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 Acid Red 14?

For Acid Red 14, Upstream Products: 1-Naphthol-4-sulfonic acid.

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

Last updated:

How to cite: Jingsj. "Acid Red 14 (CAS 3567-69-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-6808-6 (accessed 2026-11-09).

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