344306-21-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 344306-21-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,4,4,3,0 and 6 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 344306-21:
(8*3)+(7*4)+(6*4)+(5*3)+(4*0)+(3*6)+(2*2)+(1*1)=114
114 % 10 = 4
So 344306-21-4 is a valid CAS Registry Number.
344306-21-4Relevant articles and documents
DICETONES-1,4 THIOSUBSTITUEES
Duhamel, Lucette,Chauvin, Joee,Goument, Colombe
, p. 2095 - 2098 (2007/10/02)
The alkylation of o-silylated enolates of ketones by α-chloro, α-(phenylthio or arylthio) ketone 1 in presence of Lewis acids leads to thiosubstituted 1,4 diketones 4 with good yields.
