121896-51-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 121896-51-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,8,9 and 6 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 121896-51:
(8*1)+(7*2)+(6*1)+(5*8)+(4*9)+(3*6)+(2*5)+(1*1)=133
133 % 10 = 3
So 121896-51-3 is a valid CAS Registry Number.
121896-51-3Relevant articles and documents
STEREOSELECTIVE SYNTHESIS OF (+/-)-METHYL NONACTATE AND (+/-)-METHYL 8-epi-NONACTATE.
Lygo, Barry,O'Connor, Norval
, p. 3597 - 3600 (1987)
(+/-)-Methyl nonactate (2) and (+/-)-methyl 8epi-nonactate (3), synthetic precursors to the antibiotic nonactin have been synthesised, employing the reaction of substituted epoxides with dianions derived from β-ketoesters as the key carbon-carbon bond-for