【产品ID号】：230

【产品编号】：BZ-00230

【产品名称】：维甲酸

【英文名称】：Retinoic acid

【CAS.编号】：958295-17-5

【主要成分】：维A酸

【规格含量】：99%

【有效成分】：维生素A酸、维生素甲酸

【检测方法】：HPLC

【原料性状】：黄色或淡橙色结晶性粉末

【提取来源】：本品利用萃取法将植物中活性成分浓缩成干粉，本品源自天然，非化学合成品。

【保存条件】：置于阴凉干燥、避光，避高温处。

【保质期限】：24个月

【理化性质】：

Item Specification Test result

Description Yellow crystalline powder Yellow crystalline powder

Melting point About 180℃ 180.8 ~181.2℃

Identification The IR absorption spectrum should correspond with reference spectrum Correspond

with reference spectrum

Should exhibits maximum absorption at 352nm Exhibits maximum absorption at 352nm

Loss on drying Not more than 0.5% 0.24%

Residue on ignition Not more than 0.1% 0.04%

Heavy metals Not more than 0.002% Less than 0.002%

Organic Volatile Impurity Methanol Not more than 3000 ppm 68ppm

Ethyl acetate Not more than 5000 ppm 702ppm

Isopropanol Not more than 5000 ppm 327ppm

Limit of isotretinoin Not more than 5.0% 0.05%

Residual solvent ≤0.25% 0.14%

Assay 98.0%~102.0%( Calculated on the dried basis) 99.98%