69401-56-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 69401-56-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,9,4,0 and 1 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 69401-56:
(7*6)+(6*9)+(5*4)+(4*0)+(3*1)+(2*5)+(1*6)=135
135 % 10 = 5
So 69401-56-5 is a valid CAS Registry Number.
69401-56-5Relevant articles and documents
Enantioselective synthesis of neoambrosin, parthenin, and dihydroisoparthenin
Asaoka, Morio,Ohkubo, Taketoshi,Itahana, Hirotsune,Kosaka, Takatoshi,Takei, Hisashi
, p. 3115 - 3128 (1995)
Enantioselective synthesis of the titled ambrosanolides is described. Use of the trimethylsilyl group as an anchor contributed to the stereoselective introduction of two methyl groups.
