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131053-11-7

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131053-11-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 131053-11-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,1,0,5 and 3 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 131053-11:
(8*1)+(7*3)+(6*1)+(5*0)+(4*5)+(3*3)+(2*1)+(1*1)=67
67 % 10 = 7
So 131053-11-7 is a valid CAS Registry Number.

131053-11-7Relevant articles and documents

Method for producing optically active amino acid derivative

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Page/Page column 9, (2008/06/13)

[PROBLEM TO BE SOLVED]: To provide a method for producing an optically active amino acid derivative which is suitable for the industrial production and handy. [SOLUTION]: The method for producing the amino acid derivative characterized by obtaining the amino acid derivative by reducing compound shown in general formula(1) with hydrogen under the existence of palladium carbon catalyst. (wherein R1 and R2 are the same or different and hydrogen atom, alkyl group, halogen, and amino group, -NHCOR4, -OR4 and -OCOR4; R3 is alkyl group, amino group, -NHCOR4,-OR4, -OCOR4; R4 is hydrogen atom, alkyl group, and aryl group. However, at least one of R1-R3 is above-mentioned - NHCOR4.)

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