104911-35-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 104911-35-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,4,9,1 and 1 respectively; the second part has 2 digits, 3 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 104911-35:
(8*1)+(7*0)+(6*4)+(5*9)+(4*1)+(3*1)+(2*3)+(1*5)=95
95 % 10 = 5
So 104911-35-5 is a valid CAS Registry Number.
104911-35-5Relevant articles and documents
Reaction of lithium alkynolates with acid chlorides: A conventional approach to the preparation of ynol esters
Zhdankin,Stang
, p. 1461 - 1462 (1993)
Lithium alkynolates (R-C≡COLi, R = CH3, n-C4H9, t-C4H9, Ph), generated in situ from dibromomethylketones and a strong base, react with electrophiles (diethyl chlorophosphate or benzoyl chloride) with the formation of the corresponding ynol esters.