212840-20-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 212840-20-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,2,8,4 and 0 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 212840-20:
(8*2)+(7*1)+(6*2)+(5*8)+(4*4)+(3*0)+(2*2)+(1*0)=95
95 % 10 = 5
So 212840-20-5 is a valid CAS Registry Number.
212840-20-5Relevant articles and documents
Herbicidal 2-cyano-1,3-diones
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, (2008/06/13)
Herbicides derived from 2-cyano-1,3-diones have the formula: STR1 wherein R, R1, R2 R3, R4 and R5 are as defined in the description. The compounds are intended for use pre- and post-emergence as selective herbicides in maize and a large number of other monocotyledon crops.
