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Last modified
05/26/2018 - 03:10

Gramine

Product Description

CAS: 87-52-5
Molecular Formula: C11H14N2
Molecular Weight: 174.24
Product description:Lamellar or needle crystal. Melting point of 138-139 ℃, soluble in alcohol, ether, chloroform, acetone, slightly soluble in cold almost insoluble in water and petroleum ether.Indole, formaldehyde and dimethylamine condensation. Dimethylamine cold to - 5 ℃, in addition to glacial acetic acid. Under the condition of no more than 5 ℃ temperature, adding formaldehyde, indole, in 30 to 40 ℃ 8 h, cold to 5 ℃, using 40% sodium hydroxide to adjust pH is equal to 1, the cooling crystallization of gramine. After filtration, washed, dry the coarse product dissolved in acetone heating, cooling, crystallization precipitation, filtration, drying, the finished product.

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