203444-17-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 203444-17-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,3,4,4 and 4 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 203444-17:
(8*2)+(7*0)+(6*3)+(5*4)+(4*4)+(3*4)+(2*1)+(1*7)=91
91 % 10 = 1
So 203444-17-1 is a valid CAS Registry Number.
203444-17-1Relevant articles and documents
Acrylonitrile compounds
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Page/Page column 50, (2010/01/31)
The present invention relates to acrylonitrile compounds of formula (1): [wherein, R is a C1-C6alkyl, a C3-C7cycloalkyl optionally substituted by a C1-C4alkyl, a naphthyl, etc., R1/su
