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Product introduction

本品系胭脂红(C22H20O13)的铝钙色淀。溶于硼砂液，还溶于碱金属的氢氧化物或碳酸盐类成深红色溶液，部分溶于热水，几乎不溶于冷水或稀酸。制备胭脂红酸，胚胎学中作整体染色，细胞核染色，滴定氨溶液指示剂，显微分析，荧光分析，染料、食物的着色等。 This product is an aluminum-calcium lake of carmine (C22H20O13). Soluble in borax solution, also soluble in alkali metal hydroxides or carbonates to form deep red solution, partially soluble in hot water, almost insoluble in cold water or dilute acid. Preparation of carminic acid, integral staining, nuclear staining, titration of ammonia solution indicator, microscopic analysis, fluorescence analysis, coloring of dyes and foods, etc.

Specs ⸢ View details ⸥

Chinese name

胭脂红

English name

Carmine

Chinese alias

中性红 4 | 胭脂虫红 | 7-β-D-吡喃葡萄糖基-3,5,6,8-四羟基-1-甲基-9,10-二氧代-蒽-2-羧酸

English alias

CAS number

1390-65-4

molecular formula

molecular weight

492.400 g/mol

Exact mass

≥40%

PSA

243.000 Å²

Logp

0.500

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