Acid Yellow 23

 Trisodium 5hydroxy-l-(6sulphophenyl)-4-(4-sulphophenylazo) pyrazoIe 3-arboxylate.

chemical nomenclature & trade name:-

Hydroxine Yellow L; Kako tartrazine; Kayaku Food Colour Yellow No. 4; Kayaku tartrazine; Kca Foodcol Tartrazine PF; Kca Tartrazine PF; Kiton Yellow T; L-Gelb 2; L Yellow 2 1020; Lake Yellow; Lemon Yellow A; Lemon Yellow A Geigy; M-8847; Maple Tartrazol Yellow; Mitsui tartrazine; Naphtocard Yellow 0; Neklacid Yellow T; NSC 4760 Oxanal Yellow T; San-ei Tartrazine; Schultz No. 737; Sugai tartrazine; Tartar Yellow; Tartar Yellow FS; Tartar Yellow N; Tartar Yellow PF; Tartar Yellow S; Tartran Yellow; Tartraphenine; Tartrazine; Tartrazine A Export; Tartrazine B; Tartrazine B.P.C.; Tartrazine C; Tartrazine C Extra; Tartrazine Extra Pure A
1310 Yellow; 1409 Yellow; A.F. Yellow No. 4; Acid Leather Yellow T; Acid Yellow 23; Acid Yellow 23; Acid Yellow T; Acilan Yellow GG; Airedale Yellow T; Aizen tartrazine; Amacid Yellow T; Atul Tartrazine: Bucacid tartrazine; C.I. 640; C.I. 19140; C.I. Acid Yellow 23; C.I. Acid Yellow 23, trisodium salt; C.I. Food Yellow 4; Calcocid Yellow; Calcocid Yellow MCG; Calcocid Yellow XX; Canacert tartrazine; CCRIS 2656; Certicol Tartrazol Yellow S; CI 19140: Cilefa Yellow T; Curon Fast Yellow 5G D and C Yellow No. 5; Dolkwal tartrazine; Dye FD and C Yellow No. 5; Dye Yellow Lake; E 102; Edicol Supra Tartrazine N; Egg Yellow A; EINECS 217-699-5; Erio Tartrazine; Eurmrt tartrazine; FD & C Yellow No. 5; FD & C Yellow No. 5 tartrazine; Fenazo Yellow T; Food Yellow 4; Food Yellow 5; HD tartrazine; HD Tartrazine Supra; Hexacert Yellow No. 5; Hexacol tartrazine; Hidazid tartrazine; Hispacid Fast Yellow T; Hydrazine Yellow.

Chemical symbol:-

C₁₆H₉N₄Na₃O₉S₂

Molecular weight:

534.3 g/mol

Structure:-

Chemical registration numbering:-

CAS: 1934-21-0 

General description:-

yellow to greenish-yellow powder. (NTP, 1992)

Physical & Chemical Properties:-

Melting point: 572 F & Soluble in water: 20.0 g/100 mL at 25 °C 

Chemical sefaty:-

Irritant   & health hazard.

Uses:-

used to dye silk and wool & colorant in food, drugs and cosmetics. In biochemistry as an adsorption-elution indicator for chloride estimations.

Suppliers:-      

Aquarium Pharmaceuticals Inc.; Aquashade; Eecker Underwood, lnc.

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