66136-64-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 66136-64-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,6,1,3 and 6 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 66136-64:
(7*6)+(6*6)+(5*1)+(4*3)+(3*6)+(2*6)+(1*4)=129
129 % 10 = 9
So 66136-64-9 is a valid CAS Registry Number.
66136-64-9Relevant articles and documents
SELECTIVE ACYLATION OF 4-SUBSTITUTED-1,3-PHENYLENEDIAMINE
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Page/Page column 3, (2009/09/07)
This invention is directed to a method of selectively acylating a compound of formula (II): (II), wherein: R1 is NO2, —N+R33, trihalomethyl, —CN, —SO3H, —CO2H, —CO2 R