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131206-73-0

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131206-73-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 131206-73-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,1,2,0 and 6 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 131206-73:
(8*1)+(7*3)+(6*1)+(5*2)+(4*0)+(3*6)+(2*7)+(1*3)=80
80 % 10 = 0
So 131206-73-0 is a valid CAS Registry Number.

131206-73-0Relevant articles and documents

Enzymatic Preparation of Chiral 4-Hydroxy-2,2-dimethyl-1-cyclohexanone as a Chiral Building Block

Yamamoto, Hiroshi,Oritani, Takayuki,Koga, Hideo,Horiuchi, Tadao,Yamashita, Kyohei

, p. 1915 - 1921 (2007/10/02)

(S)-4-Hydroxy-2,2-dimethyl-1-cyclohexanone (1a) was prepared by two enzymatic methods. 1,4-Cyclohexanediol was converted to monoacetal (11) via (+/-)-1a.Enzymatic reduction of 11 by baker's yeast gave (S)-1 of almost 100 percent e.e.Direct hydroxylation of 2,2-dimethyl-1-cyclohexanone (14) by P-450 camphor monooxygenase of the cloned genes of Pseudomonas putida PpG1 gave (S)-1a of almost 100 percent e.e., too.According to Mitsunobu's method, SN-2 inversion of (S)-1 gave (R)-1.

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