109988-96-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 109988-96-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,9,8 and 8 respectively; the second part has 2 digits, 9 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 109988-96:
(8*1)+(7*0)+(6*9)+(5*9)+(4*8)+(3*8)+(2*9)+(1*6)=187
187 % 10 = 7
So 109988-96-7 is a valid CAS Registry Number.
109988-96-7Relevant articles and documents
New Terpenic Synthons: Methyl α- and γ-Dithiocyclogeranates
Gosselin, Pascal
, p. 267 - 270 (1987)
Methyl γ-dithiocyclogeranate, a new terpenic dithioester, was easily synthesized by the -sigmatropic rearrangement of tosylhydrazone derivative 6a.Treatment with acid gives methyl α-dithiocyclogeranate.Three methoxylated analogues are obtained in the