1257660-90-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1257660-90-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,5,7,6,6 and 0 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1257660-90:
(9*1)+(8*2)+(7*5)+(6*7)+(5*6)+(4*6)+(3*0)+(2*9)+(1*0)=174
174 % 10 = 4
So 1257660-90-4 is a valid CAS Registry Number.
1257660-90-4Relevant articles and documents
PROCESS FOR THE PREPARATION OF 1,2-DIAMINES BY INTERMOLECULAR TRANSFER OF TWO NITROGEN GROUPS ONTO ALKENES AND INTERMEDIATES THEREOF
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Page/Page column 26; 20, (2012/04/04)
A new process for the diamination of alkenes is provided, as well as the new compounds prepared thereof. A process for the preparation of the primary amines obtained from the diaminated alkenes of the provided preparation process is also provided.