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57440-71-8

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57440-71-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 57440-71-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,4,4 and 0 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 57440-71:
(7*5)+(6*7)+(5*4)+(4*4)+(3*0)+(2*7)+(1*1)=128
128 % 10 = 8
So 57440-71-8 is a valid CAS Registry Number.

57440-71-8Downstream Products

57440-71-8Relevant articles and documents

Stereochemical studies. XXXVIII. Asymmetric synthesis of the key compounds for the synthesis of optically active diterpenes. Asymmetric synthesis of optically active 1,2,3,4,5,6,7,8,8a octahydro 8a methyl 3,8 naphthalene dione derivatives with L proline derivatives

Hiroi,Yamada

, p. 1103 - 1109 (1975)

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