1257982-61-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1257982-61-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,5,7,9,8 and 2 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1257982-61:
(9*1)+(8*2)+(7*5)+(6*7)+(5*9)+(4*8)+(3*2)+(2*6)+(1*1)=198
198 % 10 = 8
So 1257982-61-8 is a valid CAS Registry Number.
1257982-61-8Relevant articles and documents
PREPARATION OF TRANS,TRANS MUCONIC ACID AND TRANS,TRANS MUCONATES
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Page/Page column 31-32, (2010/12/29)
The present invention relates to the isomerization of cis,cis and/or cis,trans muconic acid or esters thereof to trans,trans muconic acid or esters thereof and to the esterification of such muconic acids.
