156419-72-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 156419-72-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,6,4,1 and 9 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 156419-72:
(8*1)+(7*5)+(6*6)+(5*4)+(4*1)+(3*9)+(2*7)+(1*2)=146
146 % 10 = 6
So 156419-72-6 is a valid CAS Registry Number.
156419-72-6Relevant articles and documents
Process for preparation of 5-hydroxy-3-ketoester derivative and optically active substance thereof
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, (2008/06/13)
Disclosed is a process for the preparation of a 5-hydroxy-3-ketoester derivative of the formula: STR1 in which R1 represents an alkyl group, an alkenyl group, an alkynyl group, an aryl group or a heterocyclic group, and R2 represents