117730-80-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 117730-80-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,7,7,3 and 0 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 117730-80:
(8*1)+(7*1)+(6*7)+(5*7)+(4*3)+(3*0)+(2*8)+(1*0)=120
120 % 10 = 0
So 117730-80-0 is a valid CAS Registry Number.
117730-80-0Relevant articles and documents
Synthesis of α-Trihalogenomethyl-γ-oxosulfones
Messinger, Paul,Treudler, Klaus
, p. 441 - 442 (1988)
The title-compounds 6 are formed by reaction of sulfinic acids 4 with 1,1,1-trihalogen-2-buten-4-ones 1 and 1,1,1-trihalogen-2-chloro-4-butanones 8, respectively, or by addition of thioles 3 to 1 and subsequent oxidation.