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FD and C Yellow No. 5 CAS No.1934-21-0 / Cat No.EBD923
C.I. Acid Yellow 23
C.I. Acid Yellow 23, trisodium salt
C.I. Food Yellow 4
C.I. Acid Yellow 23, trisodium salt (VAN) (8CI)
4,5-dihydro-5-oxo-1-(4-sulfophenyl)-4-[(4-sulfophenyl)azo]-1H-Pyrazole-3-carboxylic acid, trisodium salt
Acid Yellow 23
Dihydro-5-oxo-1-(4-sulfophenyl)-4-((4-sulfophenyl)azo)-1H-pyrazole-3-carboxylic acid, trisodium salt
FD&C Yellow No. 5
Food Yellow No.4
Pyrazole-3-carboxylic acid, 4,5-dihydro-5-oxo-1-(4-sulfophenyl)-4-((4-sulfophenyl)azo)-, trisodium salt
Deep yellow powder
260 g/L (30 ºC)
H317 May cause an allergic skin reaction.
H334 May cause allergy or asthma symptoms or breathing difficulties if inhaled.
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P342+P311 IF experiencing respiratory symptoms: call a POISON CENTER or doctor/physician.
氢谱 NMR 1H
碳谱 NMR 13C