138832-89-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 138832-89-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,8,3 and 2 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 138832-89:
(8*1)+(7*3)+(6*8)+(5*8)+(4*3)+(3*2)+(2*8)+(1*9)=160
160 % 10 = 0
So 138832-89-0 is a valid CAS Registry Number.
138832-89-0Relevant articles and documents
SYNTHESIS OF ALL FOUR POSSIBLE ENANTIOMERS OF SITOPHILATE AGGREGATION PHEROMONE OF THE GRANARY WEEVIL
Cheskis, B. A.,Shpiro, N. A.,Moiseenkov, A. M.
, p. 2205 - 2211 (1991)
An efficient synthesis of the 3-pentyl ester of 2S-methyl-3R-hydroxypentanoic acid (sitophilate) and its 2S,3S-, 2R,3R-, and 2R,3S-isomers has been carried out starting from the available 2R-methyl-3-butenyl acetate as sole monochiral precursor.
