1740-58-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1740-58-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,7,4 and 0 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1740-58:
(6*1)+(5*7)+(4*4)+(3*0)+(2*5)+(1*8)=75
75 % 10 = 5
So 1740-58-5 is a valid CAS Registry Number.
1740-58-5Relevant articles and documents
PROCESS FOR THE PRODUCTION OF LACTAMS
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Page/Page column 11, (2008/06/13)
A homogeneous process for the hydrogenation of dicarboxylic acid and/or derivative thereof with an amine in the presence of a catalyst comprising: (a) ruthenium or osmium; and (b) an organic phosphine; and wherein the hydrogenation is carried out in the presence of water.