138982-97-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 138982-97-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,9,8 and 2 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 138982-97:
(8*1)+(7*3)+(6*8)+(5*9)+(4*8)+(3*2)+(2*9)+(1*7)=185
185 % 10 = 5
So 138982-97-5 is a valid CAS Registry Number.
138982-97-5Relevant articles and documents
Catalytic Enantioselective Conjugate Addition of Dialkylzinc Compounds to Chalcones
Bolm, Carsten,Ewald, Martina,Felder, Marcel
, p. 1205 - 1216 (2007/10/02)
Conjugate addition of diethylzinc to enones is catalyzed by a complex derived from Ni(acac)2 and C2-symmetric 2,2'-bipyridine 3 or chiral pyridines 5-12.The products are obtained with optical purities up to 89percent ee.A strong positive nonlin