2,7-naphthalenedisulfonic acid, 5-(acetylamino)-4-hydroxy-3-(phenylazo)-, disodium salt

CAS: 3734-67-6 C18 H13 N3 Na2 O8 S2 MW: 509.42574856

Identification

Nameci 18050
IUPACdisodium;(3Z)-5-acetamido-4-oxo-3-(phenylhydrazinylidene)naphthalene-2,7-disulfonate
CAS Number3734-67-6
EINECS223-098-9
FDA UNII3365R6427R
Molecular FormulaC18 H13 N3 Na2 O8 S2
Molecular Weight509.42574856
MDL NumberMFCD00003954
Beilstein4121767

Regulatory

JECFA Food AdditiveRed 2G
GSFA CodexRed 2G (128)

Physical Properties

Appearance red powder (est)
Assay 80.00 to 100.00
Food Chemicals Codex Listed No
Flash Point 32.00 °F. TCC ( 0.00 °C. ) (est)
logP (o/w) -0.284 (est)
Soluble in water, 2516 mg/L @ 25 °C (est)

Cosmetic Information

CosIngcosmetic data
Cosmetic Usescosmetic colorants

No sensory data available

Safety Information

Preferred SDSView
Oral/Parenteral ToxicityNot determined
Dermal ToxicityNot determined
Inhalation ToxicityNot determined

GHS Classification

['GHS Classification in accordance with 29 CFR 1910 (OSHA HCS)', 'GHS Label elements, including precautionary statements']

Safety in Use

Categorycoloring agents
Recommendation for ci 18050 usage levels up tonot for fragrance use.
Recommendation for ci 18050 flavor usage levels up tonot for flavor use.

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Potential Uses

cosmetic colorants

Natural Occurrence

not found in nature

Synonyms

acetyl red G acetyl red J acetyl rose 2GL acid fast red 3G acid fast red EGG acid leather red KG acid naftol red G acid phloxine GA acid red 1 acid red 1 (c.i. 18050) acid red 1 disodium salt acid red 2G acid red GA acid rose 2GL amacid phloxine G amino naphthol red g (c.i. 18050) azo phloxine GA azophloxine (c.i. 18050) belacid phloxine G brilliant acid red G bucacid fast crimson c.i. 18050 C.I. acid red 1, disodium salt (8CI) C.I. food red 10 calcocid phloxine 2G disodium 5-acetyl amino-4-hydroxy-3-(phenyl azo)naphthalene-2,7-disulfonate disodium;(3Z)-5-acetamido-4-oxo-3-(phenylhydrazinylidene)naphthalene-2,7-disulfonate edicol supra geranine 2G fast crimson GR food red 10 hexacol red 2G hidacid fast crimson kiton fast red G lissamine red 2G 2,7- naphthalenedisulfonic acid, 5-(acetylamino)-4-hydroxy-3-(phenylazo)-, disodium salt naphtocard red 2G phloxine 2G red 2G unitertracid red 2G Try the PubMed Search.