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117707-38-7

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117707-38-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 117707-38-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,7,7,0 and 7 respectively; the second part has 2 digits, 3 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 117707-38:
(8*1)+(7*1)+(6*7)+(5*7)+(4*0)+(3*7)+(2*3)+(1*8)=127
127 % 10 = 7
So 117707-38-7 is a valid CAS Registry Number.

117707-38-7Relevant articles and documents

A green resolution-separation process for aliphatic secondary alcohols

Ren, Liwei,Xu, Tian,He, Ruoping,Jiang, Zhenhua,Zhou, Hua,Wei, Ping

, p. 249 - 253 (2013/05/09)

In order to obtain both enantiomers of aliphatic secondary alcohols via a greener method, the four-step resolution-separation process involving lipase-catalyzed enantioselective esterification and hydrolysis as well as two separation procedures both via heterogeneous azeotropic distillation was developed. (S)-2-Pentanol (ee = 98.6%), (R)-2-pentanol (ee >99%), (S)-2-octanol (ee = 98.2%), and (R)-2-octanol (ee = 98.5%) were all produced in high purity (>98%) and high yield (>90%). In addition to the two model substrates, this method could also be applied to the resolution of other aliphatic secondary alcohols.

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