英文名称： vitamin A
其他名称： 视黄醇(retinol)
CAS No.： 68-26-8
EINECS ： 200-683-7
分子 量： 286.452
分子 式： C20H28O
熔 点： 61-63 ºC
含量: 95%,98%
质量标准: USP30
特性: 浅黄至浅红色至棕色粉末。
水溶性: 溶于水、乙醇，在水中能乳化。，不溶于植物油、矿物油和脂肪。

简介 维生素A的化学名为视黄醇，是最早被发现的维生素。维生素A有两种。一种是维生素A醇（retionl），是最初的维生素A形态（只存在于动物性食物中）；另一种是胡萝卜素（carotene），视黄醇可由植物来源的β - 胡萝卜素合成，在体内β - 胡萝卜素-15，15′-双氧酶（双加氧酶）催化下，可将β - 胡萝卜素转变为两分子的视黄醛（ratinal），视黄醛在视黄醛还原酶的作用下还原为视黄醇。故β - 胡萝卜素也称为维生素A 原。 计量单位 ；维生素A的计量单位是USP单位（United States Pharmocopea）、IU单位（International Units）、RE单位（Retinol Equivalents）等3种。

Company Profile：

HQCHEALTH ^®& HQCBEAUTY ^®， Affiliated to the multinational chemical group HQC Group. We specialize in the research and development, production, and import and export of natural plant extracts, high-purity monomers of plant functional ingredients, standardized extracts, and health products, cosmetics, raw materials, and medicinal products. We have three specialized production factories and one research institute, and set up sales points in Hangzhou, Shanghai, and Guangzhou. The factory is located in Sanyuan, Zhouzhi, Shaanxi Province and Changsha, Hunan Province. Now it has production workshops organized and built according to GMP standards, equipped with advanced vacuum drying equipment and spray drying equipment, as well as a number of advanced full set stainless steel plant extraction production lines and stainless steel pilot workshops. The production process is completely closed and production management is carried out in strict accordance with the SOP of each post. We have a group of high-quality and professional management personnel who strictly manage the production of traditional Chinese medicine in accordance with GMP standards. A sound production quality assurance system and comprehensive rules and regulations have enabled our product quality and technical indicator system to reach the international advanced level, thus meeting the needs of domestic and foreign markets. The company insists on; The purpose of quality, service, integrity, and development is to follow the principles of low-carbon and environmental protection. The brand has entered international markets such as Southeast Asia, South America, the Middle East, and Europe, providing important raw materials for the pharmaceutical, food, cosmetics, health products, and other manufacturing industries. It has won the trust of many customers at home and abroad, and has stable international customers in countries and regions such as the United States, Europe, Korea, Japan, South America, and Southeast Asia.

HQCHEALTH^®&HQCBEAUTY^® (plant extraction, production of

cosmetic raw materials and raw materials for functional healthcare products)

Website:www.sxhaiqiangchem.com

Raw materials for functional healthcare medicinal products:

E-mail：hqchealth@chinahaiqiangchem.com

Cosmetic raw materials：

E-mail：hqcbeauty@chinahaiqiangchem.com