39803-91-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 39803-91-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,9,8,0 and 3 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 39803-91:
(7*3)+(6*9)+(5*8)+(4*0)+(3*3)+(2*9)+(1*1)=143
143 % 10 = 3
So 39803-91-3 is a valid CAS Registry Number.
39803-91-3Relevant articles and documents
N-alkyl or alkoxy-N'-substituted hydrocarbyl urea
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, (2008/06/13)
Compounds of the formula STR1 wherein R is aliphatic hydrocarbyl, alicyclic hydrocarbyl or aryl suitably substituted, if desired, or a heterocyclic group, R1 is hydrogen or alkyl, R2 is alkyl or alkoxy, R3 is STR2 wherein