57228-77-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 57228-77-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,2,2 and 8 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 57228-77:
(7*5)+(6*7)+(5*2)+(4*2)+(3*8)+(2*7)+(1*7)=140
140 % 10 = 0
So 57228-77-0 is a valid CAS Registry Number.
57228-77-0Relevant articles and documents
Cyclic esters of 3,4-dihydroxy-thiophene-1,1-dioxide compounds and 3,4-dihydroxy-cyclopentadienone compounds
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, (2008/06/13)
Cyclic esters of 3,4-dihydroxy-thiophene-1,1-dioxide and of the corresponding cyclopentadienone compound, and their manufacture. The compounds can be used as "solid forms" of phosgene, thiophosgene or oxalyl chloride, or as acyl transfer agents.
