1424-71-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1424-71-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,4,2 and 4 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1424-71:
(6*1)+(5*4)+(4*2)+(3*4)+(2*7)+(1*1)=61
61 % 10 = 1
So 1424-71-1 is a valid CAS Registry Number.
1424-71-1Relevant articles and documents
Synthesis of gon-4-enes
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, (2008/06/13)
1. A therapeutic composition having progestational activity comprising as active ingredient a 17-aliphatic carboxylic acid ester of 17α-ethynyl-18-methyl-19-nortestosterone and a pharmaceutical carrier for said compound.