EU/US Properties Organoleptics Cosmetics Suppliers Safety Safety in use Safety references References Other Blenders Uses Occurrence Synonyms Articles Notes

ci 18050
2,7-naphthalenedisulfonic acid, 5-(acetylamino)-4-hydroxy-3-(phenylazo)-, disodium salt

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CAS Number: 3734-67-6Picture of molecule3D/inchi
ECHA EINECS - REACH Pre-Reg:223-098-9
FDA UNII:3365R6427R
Beilstein Number:4121767
Molecular Weight:509.42574856
Formula:C18 H13 N3 Na2 O8 S2
NMR Predictor:Predict (works with chrome or firefox)
Category:coloring agents
US / EU / FDA / JECFA / FEMA / FLAVIS / Scholar / Patent Information:
Google Scholar:Search
Google Books:Search
Google Scholar: with word "volatile"Search
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Perfumer and Flavorist:Search
Google Patents:Search
US Patents:Search
EU Patents:Search
Pubchem Patents:Search
JECFA Food Additive: Red 2G
GSFA Codex: Red 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)
 alcohl, very slightly
Organoleptic Properties:
Odor and/or flavor descriptions from others (if found).
Cosmetic Information:
CosIng:cosmetic data
Cosmetic Uses: cosmetic colorants
Abbey Color
Acid Red 1
Glentham Life Sciences
Acid Red 1 (C.I. 18050)
Rung International
Red 2G
Santa Cruz Biotechnology
For experimental / research use only.
Sigma-Aldrich: Aldrich
For experimental / research use only.
Acid Red 1 Dye content 60 %
For experimental / research use only.
Acid Red 1
Safety Information:
Preferred SDS: View
Hazards identification
Classification of the substance or mixture
GHS Classification in accordance with 29 CFR 1910 (OSHA HCS)
None found.
GHS Label elements, including precautionary statements
Hazard statement(s)
None found.
Precautionary statement(s)
None found.
Oral/Parenteral Toxicity:
Not determined
Dermal Toxicity:
Not determined
Inhalation Toxicity:
Not determined
Safety in Use Information:
coloring agents
Recommendation for ci 18050 usage levels up to:
 not for fragrance use.
Recommendation for ci 18050 flavor usage levels up to:
 not for flavor use.
Safety References:
European Food Safety Authority (EFSA) reference(s):

Opinion of the Scientific Panel on food additives, flavourings, processing aids and materials in contact with food (AFC) on the food colour Red 2G (E128) based on a request from the Commission related to the re-evaluation of all permitted food additives
View page or View pdf

EPI System: View
Cancer Citations:Search
Toxicology Citations:Search
EPA Substance Registry Services (TSCA):3734-67-6
EPA ACToR:Toxicology Data
EPA Substance Registry Services (SRS):Registry
Laboratory Chemical Safety Summary :6507024
National Institute of Allergy and Infectious Diseases:Data
WGK Germany:3
RTECS:QJ6030000 for cas# 3734-67-6
NIST Chemistry WebBook:Search Inchi
Canada Domestic Sub. List:3734-67-6
Pubchem (cid):6507024
Pubchem (sid):134985810
Other Information:
(IUPAC):Atomic Weights of the Elements 2011 (pdf)
Videos:The Periodic Table of Videos
tgsc:Atomic Weights use for this web site
(IUPAC):Periodic Table of the Elements
HMDB (The Human Metabolome Database):Search
Export Tariff Code:3204.12.5090
FDA Color Additive Status ListView
Potential Blenders and core components note
None Found
Potential Uses:
 cosmetic colorants
Occurrence (nature, food, other):note
 not found in nature
 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
 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
None found
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