1142951-19-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1142951-19-6 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,4,2,9,5 and 1 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1142951-19:
(9*1)+(8*1)+(7*4)+(6*2)+(5*9)+(4*5)+(3*1)+(2*1)+(1*9)=136
136 % 10 = 6
So 1142951-19-6 is a valid CAS Registry Number.
1142951-19-6Relevant articles and documents
Synthesis process for preparing 4 alpha-azacyclo steroid compound from 2 alpha-iodide
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, (2020/01/12)
The invention discloses a new synthesis process for preparing a 4 alpha-azacyclo steroid compound. The method comprises: synthesizing a key intermediate 2 alpha-iodine-5 alpha-androsta-3,17-dione by using 5 alpha-androsta-3,17-dione as a raw material unde