93845-21-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 93845-21-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,3,8,4 and 5 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 93845-21:
(7*9)+(6*3)+(5*8)+(4*4)+(3*5)+(2*2)+(1*1)=157
157 % 10 = 7
So 93845-21-7 is a valid CAS Registry Number.
93845-21-7Relevant articles and documents
TWO-CARBON MICHAEL ACCEPTORS. ACETYL CATION EQUIVALENTS
Kinoshita, Hitoshi,Hori, Isaburo,Oishi, Takeshi,Ban, Yoshio
, p. 1517 - 1520 (2007/10/02)
Base-induced Michael condensation of chloromethoxyvinyl phenyl sulfoxides or sulfones with active methylene compounds were examined.The newly introduced functionalized substituents were converted into acetyl group by the subsequent treatment.