1268091-99-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1268091-99-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,6,8,0,9 and 1 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1268091-99:
(9*1)+(8*2)+(7*6)+(6*8)+(5*0)+(4*9)+(3*1)+(2*9)+(1*9)=181
181 % 10 = 1
So 1268091-99-1 is a valid CAS Registry Number.
1268091-99-1Relevant articles and documents
Facial selectivity and stereospecificity in the (4 + 3) cycloaddition of epoxy enol silanes
Lo, Brian,Chiu, Pauline
, p. 864 - 867 (2011/05/06)
The scope of the (4 + 3) cycloaddition using epoxy enol silanes has been examined. Unhindered and nucleophilic dienes react to give the highest yields, but hindered dienes give rise to higher diastereoselectivities. Notably, the cycloaddition shows facial