100249-23-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 100249-23-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,0,2,4 and 9 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 100249-23:
(8*1)+(7*0)+(6*0)+(5*2)+(4*4)+(3*9)+(2*2)+(1*3)=68
68 % 10 = 8
So 100249-23-8 is a valid CAS Registry Number.
100249-23-8Relevant articles and documents
An unexpected inversion of enantioselectivity in the proline catalyzed intramolecular Baylis-Hillman reaction
Chen, Shang-Hung,Hong, Bor-Cherng,Su, Cheng-Feng,Sarshar, Sepehr
, p. 8899 - 8903 (2005)
A highly enantioselective proline catalyzed intramolecular Baylis-Hillman reaction of hept-2-enedial is reported. Addition of imidazole to the mixture results in an unusual inversion of enantioselectivity.