胭脂红酸(自然染料) ≥85%

Name: 胭脂红酸(自然染料)
SKU: V92221

Cochineal Carmine Powder

品牌：桔子

产品编号：V92221

CAS号：1260-17-9

分子式：C22H20O13

分子量：492.39

MDL：MFCD00167028

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产品名称 :	胭脂红酸(自然染料)
英文名称 :	Cochineal Carmine Powder
参考名称 :	3,5,6,8-四羟基-1-甲基-9,10-二氧代-7-((2S,3R,4R,5S,6R)-3,4,5-三羟基-6-(羟甲基)四氢-2H-吡喃-2-基)-9,10-二氢蒽-2-羧酸
参考英文名称 :	3,5,6,8-Tetrahydroxy-1-methyl-9,10-dioxo-7-((2S,3R,4R,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)-9,10-dihydroanthracene-2-carboxylic acid
CAS号 :	1260-17-9
分子式 :	C22H20O13
分子量 :	492.39
SMILES :	CC1=C(C(O)=O)C(O)=CC2=C1C(=O)C1=C(O)C([C@@H]3O[C@H](CO)[C@@H](O)[C@H](O)[C@H]3O)=C(O)C(O)=C1C2=O
MDL NO :	MFCD00167028
PubChem CID :	10255083
InChIKey :	DGQLVPJVXFOQEV-JNVSTXMASA-N
储存条件 :	2-8℃

熔点 :	136 °C (decomposes)；No distinct melting point; darkens at 120 °C
外观 / 形态 :	Carminic acid appears as dark purplish-brown mass or bright red or dark red powder. Darkens at 248 °F. Deep red color in water. Yellow to violet in acidic aqueous solutions. (NTP, 1992)；Dark purplish-brown or bright red solid; [Hawley] Deep violet fine crystals; [MSDSonline]；Red to dark red, friable, solid or powder. Cochineal extract is generally a dark red liquid but can also be dried as a powder.
颜色 / 形态 :	Red monoclinic prisms from aqueous methanol；Dark, purplish-brown mass or bright-red powder；Deep red color in water; yellow to violet in acid solutions
溶解性 :	Soluble in alcohol, concentrated sulfuric acid; slightly soluble in ether; practically insoluble in petroleum ether, benzene, chloroform；In water, 1.30 g/L (1.30X10+3 mg/L) at 25 °C
解离常数 pKa :	pKa1 = 2.81; pKa2 = 5.43; pKa3 = 8.10
pH :	pH = 4.8 (yellow); pH = 6.2 (violet)
旋光性 :	Specific optical rotation (water): +51.6 deg at 15 °C/654 angstroms

资料来源：胭脂红酸(自然染料)产品资料页；来源页标注 PubChem CID 10255083，资料日期 2026-10-11。