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164200-03-7

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164200-03-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 164200-03-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,4,2,0 and 0 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 164200-03:
(8*1)+(7*6)+(6*4)+(5*2)+(4*0)+(3*0)+(2*0)+(1*3)=87
87 % 10 = 7
So 164200-03-7 is a valid CAS Registry Number.

164200-03-7Relevant articles and documents

Resolution of 2-aryloxy-1-propanols via lipase-catalyzed enantioselective acylation in organic media

Miyazawa, Toshifumi,Yukawa, Tomoyuki,Koshiba, Takashi,Sakamoto, Hiroko,Ueji, Shinichi,Yanagihara, Ryoji,Yamada, Takashi

, p. 1595 - 1602 (2007/10/03)

2-Aryloxy-1-propanols, primary alcohols with an oxygen atom at the stereocenter, were resolved with good to high enantioselectivity by acylation with vinyl butanoate mediated by Pseudomonas sp. lipase in di-iso-propyl ether. Potential factors affecting the enantioselectivity of the enzymatic acylation were examined: solvents, acyl donors and temperature. Using this enantioselective acylation procedure, enantiomerically pure (R)-2-(4-chlorophenoxy)-1-propanol was prepared on a gram scale.

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