Fresh and natural texture, improve the renew of the skin, moisture and aromatize, full of the fragrance of charm, suitable to all type of skin.

质地清爽自然，促进肌肤再生，令肌肤水润、芳香，充满着让人不由亲近的芳香魅力，适合任何肤质。

youdao

The first route was using the liquid bromine to aromatize the 4-chlorotetrahydrophthalic anhydride to 4-chlorophthalic anhydride, The yield was 89%, and the purity was more than 99%.

第一种方法：用液溴作芳化试剂，将4-氯代四氢苯酐芳化为4-氯代苯酐，收率达到89%，纯度大于99%；

youdao

The first route was using the liquid bromine to aromatize the 4-chlorotetrahydrophthalic anhydride to 4-chlorophthalic anhydride, The yield was 89%, and the purity was more than 99%.

第一种方法：用液溴作芳化试剂，将4-氯代四氢苯酐芳化为4-氯代苯酐，收率达到89%，纯度大于99%；

youdao