PONCEAU 3R

CAS NO.：3564-09-8
Empirical Formula: C19H19N2NaO7S2
Molecular Weight: 474.48
MDL number: MFCD00036432
EINECS: 222-638-0
SAFETY DATA SHEET (SDS)
Update Date: 2026-05-20 15:44:18

What is PONCEAU 3R?

Chemical properties

Dark-red powder. Soluble in water and acids to form a cherry-red solution; slightly soluble in alcohol; insoluble in alkalies.

The Uses of PONCEAU 3R

Dyeing wool. Colorant in food, drugs and cosmetics.

What are the applications of Application

Ponceau 3R is a specific azo dyes for analytical purposes

Definition

A water-soluble red dye.

General Description

Dark red crystals or red powder.

Air & Water Reactions

Azo dyes can be explosive when suspended in air at specific concentrations. Water soluble.

Reactivity Profile

PONCEAU 3R is an azo compound. Azo, diazo, azido compounds can detonate. This applies in particular to organic azides that have been sensitized by the addition of metal salts or strong acids. Toxic gases are formed by mixing materials of this class with acids, aldehydes, amides, carbamates, cyanides, inorganic fluorides, halogenated organics, isocyanates, ketones, metals, nitrides, peroxides, phenols, epoxides, acyl halides, and strong oxidizing or reducing agents. Flammable gases are formed by mixing materials in this group with alkali metals. Explosive combination can occur with strong oxidizing agents, metal salts, peroxides, and sulfides.

Hazard

Prohibited by FDA for use in foods, drugs, cosmetics. Possible carcinogen.

Fire Hazard

Flash point data for PONCEAU 3R are not available; however, PONCEAU 3R is probably combustible.

Safety Profile

Confirmed carcinogen with experimental carcinogenic and tumorigenic data. Mutation data reported. When heated to decomposition it emits toxic fumes of NOx and SOx.

Properties of PONCEAU 3R

Melting point:	300℃
Colour Index	16155
Merck	7590
CAS DataBase Reference	3564-09-8(CAS DataBase Reference)
IARC	2B (Vol. 8, Sup 7) 1987
EPA Substance Registry System	C.I. Food Red 6 (3564-09-8)

Safety information for PONCEAU 3R

Signal word	Warning
Pictogram(s)	Exclamation Mark Irritant GHS07
GHS Hazard Statements	H302:Acute toxicity,oral H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation
Precautionary Statement Codes	P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P280:Wear protective gloves/protective clothing/eye protection/face protection. P301+P312:IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. P302+P352:IF ON SKIN: wash with plenty of soap and water. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.