121772-23-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 121772-23-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,7,7 and 2 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 121772-23:
(8*1)+(7*2)+(6*1)+(5*7)+(4*7)+(3*2)+(2*2)+(1*3)=104
104 % 10 = 4
So 121772-23-4 is a valid CAS Registry Number.
121772-23-4Relevant articles and documents
EPC Syntheses from Bicyclic Dioxanones: (-)-5-Epidehydrofukinone
Herradon, Bernardo
, p. 977 - 980 (2007/10/02)
(-)-5-Epidehydrofukinone ((-)-15) has been synthesized from (2S,4aS,5S,8aS)-4a,5-dimethyl-2-(tert-butyl)-perhydro-4H-1,3-benzodioxan-4-one (4a), a compound readily available by yeast reduction of ethyl 2-oxocyclohexanecarboxylate.
