189511-09-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 189511-09-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,9,5,1 and 1 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 189511-09:
(8*1)+(7*8)+(6*9)+(5*5)+(4*1)+(3*1)+(2*0)+(1*9)=159
159 % 10 = 9
So 189511-09-9 is a valid CAS Registry Number.
189511-09-9Relevant articles and documents
Chiral syntheses of edulans I, II and dihydroedulans I, II and absolute cenfigurations of edulans I, II
Honda, Toshio,Yamauchi, Akira,Tsubuki, Masayoshi,Matsumoto, Takeshi
, p. 837 - 839 (1997)
Enantiospecific syntheses of (+)- and (-)-edulans I, II and (-)-dihydroedulans I, II, starting from (R)- and (S)-3-hydroxybutyric acid methyl esters, allowed the determination of the absolute configurations of edulans I, II.
