143870-62-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 143870-62-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,3,8,7 and 0 respectively; the second part has 2 digits, 6 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 143870-62:
(8*1)+(7*4)+(6*3)+(5*8)+(4*7)+(3*0)+(2*6)+(1*2)=136
136 % 10 = 6
So 143870-62-6 is a valid CAS Registry Number.
143870-62-6Relevant articles and documents
The effect of base and additive on the alkylation of methyl hippurate
McIntosh,Thangarasa,Ager,Zhi
, p. 6219 - 6224 (1992)
Contrary to a published report, C-alkylation of methyl hippurate requires two equivalents of base. The choice of additive (TMEDA or HMPA) influences the result. Deuteration of the enolate gives results which depend on both the deuterium source and the nature of the additive.