DL-Tryptophan

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Selling leads
DL-Tryptophan
Posting date : Sep 30, 2011
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Free Member Scince Oct 20, 2010
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Place of Origin
China [CN]
HS-CODE
30-
Package & Delivery Lead Time
Delivery Lead Time
2012-01-25
Detailed Description
White to yellow white crystal or crystalline powder, odorless or with slight odor, slightly sweet. L-type is bitter; Sweetness of D-type is similar to that of cane sugar. PH value of 0.2% aqueous solution: 5.5~7.0, melting point: 295℃(decomposed). It has weak resistance to acid and light. It is soluble in water(0.4%, 25℃), diluted acid and alkali, slightly soluble in ethanol.

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