Ponceau 3R | CAS No. 3564-09-8

Ponceau 3R

Basic Information

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CAS Number

3564-09-8

Molecular Formula

C19H16N2Na2O7S2

Molecular Weight

494.5 g/mol

Chemical Classification

Basic Chemical Raw Materials Organic Chemicals Carboxylic Acids

Fine Chemicals Dyes and Pigments Organic Dyes

Fine Chemicals Surfactants Anionic Surfactants

Basic Physical Properties

Boiling Point

°Cat760mmHg

SMILES

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CC1=CC(=C(C=C1C)N=NC2=C3C=CC(=CC3=CC(=C2O)S(=O)(=O)[O-])S(=O)(=O)[O-])C.[Na+].[Na+]

InChI

InChI=1S/C19H18N2O7S2.2Na/c1-10-6-12(3)16(7-11(10)2)20-21-18-15-5-4-14(29(23,24)25)8-13(15)9-17(19(18)22)30(26,27)28;;/h4-9,22H,1-3H3,(H,23,24,25)(H,26,27,28);;/q;2*+1/p-2

InChIKey

SWPPXVFKWWEYSV-UHFFFAOYSA-L

LogP

5.85580

Complexity

823

Safety Information

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Hazard Statement

H302 Harmful if swallowed
Acute toxicity, oral

H315 Causes skin irritation
Skin corrosion/irritation

H319 Causes serious eye irritation
Serious eye damage/eye irritation

H335 May cause respiratory irritation
Specific target organ toxicity, single exposure; Respiratory tract irritation

H351 Suspected of causing cancer
Carcinogenicity

Synonyms & References

English

NCGC00260334-01
2,7-NAPHTHALENEDISULFONIC ACID, 3-HYDROXY-4-(2-(2,4,5-TRIMETHYLPHENYL)DIAZENYL)-, SODIUM SALT (1:2)
disodium;3-hydroxy-4-[(2,4,5-trimethylphenyl)diazenyl]naphthalene-2,7-disulonate
C.I. 16155
Usacert Red No. 1
Cerven kumidinova [Czech]
ALLYLORTHOFORMATE
Tox21_202788
C.I. FOOD RED 6 DISODIUM SALT
Disodium 3-hydroxy-4-((2,4,5-trimethylphenyl)azo)-2,7-naphthalenedisulfonate
Disodium 3-hydroxy-4-((2,4,5-trimethylphenyl)azo)-2,7-naphthalenedisulphonate
CI Food 6
FA32R9S74X
CHEMBL3186386
Sodium cumeneazo-beta-naphtholdisulphonate
SCHEMBL1268487
D and C Red 15
PONCEAU 3R
FD & C red no. 1
AF Red No. 1
UNII-FA32R9S74X
FDC Red 1
FT-0634904
EINECS 222-638-0
Ponceau 3R Lake
Ponceau 3R sodium salt
C.I. Food Red 6, disodium salt
AKA502
sodium (E)-3-hydroxy-4-((2,4,5-trimethylphenyl)diazenyl)naphthalene-2,7-disulfonate
disodium 3-hydroxy-4-[(E)-(2,4,5-trimethylphenyl)diazenyl]naphthalene-2,7-disulfonate
PONCEAU 3R [IARC]

MDL Number

MFCD00036432

FAQ

What are the physical and chemical properties of Ponceau 3R (CAS: 3564-09-8)?

Ponceau 3R is a red azo dye with a molecular weight of approximately 512.34 g/mol. It is slightly soluble in water and ethanol. Ponceau 3R is known for its low reactivity and stability under various conditions, making it suitable for food and textile dyeing. It is also stable under acidic and alkaline conditions, with good light and heat resistance.

How is Ponceau 3R (CAS: 3564-09-8) typically synthesized?

Ponceau 3R is synthesized through a multi-step process involving the coupling of an aromatic amine with an azo coupling agent. The reaction is typically carried out in organic solvents like methanol or ethanol under acidic conditions. The yield is around 70-80%, and the process involves careful control of temperature and pH to ensure high selectivity and purity.

What industries use Ponceau 3R (CAS: 3564-09-8)?

Ponceau 3R is widely used in the food industry as a red food dye, particularly in the production of sauces and condiments. It is also utilized in the textile industry for dyeing fabrics and in the plastics industry as a colorant. Additionally, it has applications in the pharmaceutical industry, where it is used as a dye in capsules and tablets.

What precautions should be taken when handling Ponceau 3R (CAS: 3564-09-8)?

Ponceau 3R should be handled in a well-ventilated area with proper personal protective equipment (PPE), including gloves, safety glasses, and a lab coat. It is recommended to work in a fume hood to minimize inhalation risks. Spills should be cleaned up using appropriate absorbents, and the area should be thoroughly washed down. Always refer to the Safety Data Sheet (SDS) for specific handling and disposal instructions.