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(R)-2-Benzyloxycarbonylamino-3-(1,2-diacetoxy-ethylsulfanyl)-propionic acid methyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

191721-67-2

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191721-67-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 191721-67-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,1,7,2 and 1 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 191721-67:
(8*1)+(7*9)+(6*1)+(5*7)+(4*2)+(3*1)+(2*6)+(1*7)=142
142 % 10 = 2
So 191721-67-2 is a valid CAS Registry Number.

191721-67-2Downstream Products

191721-67-2Relevant academic research and scientific papers

Enzymatic resolution of α,β-diacetoxysulfides: Synthesis of optically active O,S-acetals by regiospecific enantioselective primary acetate hydrolysis

Brand, Stephen,Jones, Martin F.,Rayner, Christopher M.

, p. 3595 - 3598 (1997)

α,β-Diacetoxy sulphides are precursors of chiral oxathiolanes and have been resolved by Pseudomonas fluorescens lipase catalysed hydrolysis. The resolution proceeds with complete regioselectivity for the primary acetate and excellent enantioselectivity in most cases.

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