7660-21-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 7660-21-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,6,6 and 0 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 7660-21:
(6*7)+(5*6)+(4*6)+(3*0)+(2*2)+(1*1)=101
101 % 10 = 1
So 7660-21-1 is a valid CAS Registry Number.
7660-21-1Relevant articles and documents
Process For Preparing Chlorinated Carbonyl Compounds In Jet Loop Reactors
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Page/Page column 4-5, (2008/12/05)
The present invention relates to a process for preparing chlorinated or partly chlorinated carbonyl compounds, which comprises reacting unchlorinated or partly chlorinated carbonyl compounds with a chlorinating agent in a jet loop reactor.