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1934-21-0

Name Acid Yellow 23
CAS 1934-21-0
EINECS(EC#) 217-699-5
Molecular Formula C16H9N4Na3O9S2
MDL Number MFCD00148908
Molecular Weight 534.36
MOL File 1934-21-0.mol

Chemical Properties

Appearance Deep yellow powder
Melting point  300 °C
Boiling point  909.54℃[at 101 325 Pa]
density  2.121[at 20℃]
vapor pressure  0Pa at 25℃
storage temp.  -20°C
solubility  DMSO (Sparingly, Heated), Water (Slightly)
Colour Index  19140
form  Powder
color  Orange
Stability: Stable. Hygroscopic. Incompatible with strong oxidizing agents.
Water Solubility  260 g/L (30 ºC)
Sensitive  Hygroscopic
Merck  14,9072
BRN  69850
Biological Applications Treating hepatitis,periodontal disease,psoriasis
Uses
Tartrazine (FD&C Yellow #5) is a colorant. It has good stability to changes in ph, showing no appreciable change at ph 3–8. It has excellent solubility in water with a solubility of 20 g in 100 ml at 25°c. It has good stability to light and heat, fair stability to oxidation, and shows no appreciable change in 10% sugar systems. It has a lemon-yellow hue and has good tinctorial strength. It has moderate compatibility with food components and is used in beverages, baked goods, pet foods, desserts, candy, confections, cereal, and ice cream.
EPA Substance Registry System 1H-Pyrazole-3-carboxylic acid, 4,5-dihydro-5-oxo-1-(4-sulfophenyl)- 4-[(4-sulfophenyl)azo]-, trisodium salt(1934-21-0)

Safety Data

Hazard Codes  Xn
Risk Statements 
Safety Statements 
WGK Germany  1
RTECS  UQ6400000
TSCA  Yes
HS Code  32129000
Safety Profile
Low toxicity by ingestion. Mutation data reported. When heated to decomposition it emits very toxic fumes of NOx, SOx, and Na2O.
Hazardous Substances Data 1934-21-0(Hazardous Substances Data)
Toxicity
LD50 oral in mouse: 12750mg/kg

Hazard Information

Material Safety Data Sheet(MSDS)

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