染色剂和染料
CAS号：2611-82-7
品名：酸性红18AcidRed18
中文别名：酸性红R;食用胭脂红;食品红7;丽春红4R;1-(4-磺酸-1-萘偶氮)-2-羟基-6,8-萘二磺酸三钠盐;新胭脂红;新胭脂红/胭脂红;酸性红18;亮丽春红5R;胭脂红A;酸性大红3R;
英文别名：AcidredR;Ponceau4R;E124;cochinealredA;FoodRedNo.102;Brilliantponceau5R;AKA102;foodred7;NewCoccine;1578red;foodred6;c.i.185;l-rot4;COCCINE;Red18;
分子式：C20H11N2Na3O10S3
分子量：604.473
精确质量：603.927
Psa：241.69
RTECS号：QJ6530000
BRN号：4122340
EINECS号：220-036-2
MDL号：MFCD00004084
PubChem号：24851935
外观与性状：红色粉末
密度：
稳定性：Stable under normal temperatures and pressures.
储存条件：Keep container closed when not in use. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
安全说明：S22-S24/25
简介：Ponceau4R(knownbymorethan100synonyms,:460–461includingasC.I.16255,CochinealRedA,C.I.AcidRed18,BrilliantScarlet3R,BrilliantScarlet4R,NewCoccine,:460isasyntheticcolourantthatmaybeusedasafoodcolouring.ItisdenotedbyENumberE124.Itschemicalnameis1-(4-sulpho-1-napthylazo)-2-napthol-6,8-disulphonicacid,trisodiumsalt.Ponceau(Frenchfor\"poppy-coloured\")isthegenericnameforafamilyofazodyes.
用途：主要用于羊毛、蚕丝、锦纶的染色及羊毛、蚕丝织物的印花。坚牢度较差。还可用于纸张、皮革、肥皂等的着色。
