126889-44-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 126889-44-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,6,8,8 and 9 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 126889-44:
(8*1)+(7*2)+(6*6)+(5*8)+(4*8)+(3*9)+(2*4)+(1*4)=169
169 % 10 = 9
So 126889-44-9 is a valid CAS Registry Number.
126889-44-9Relevant articles and documents
UEBER DAS SYNTHESEPOTENTIAL TRIFLUORMETHYL-SUBSTITUIERTER ZINN-HETEROCYCLEN
Burger, Klaus,Geith, Klaus,Sewald, Norbert
, p. 105 - 122 (1990)
4,4-Bis(trifluoromethyl) substituted heterodienes of type (F3C)2C=N-C(R1)=X (X = O, S, NR2) react with tin(II) compounds to give cycloadducts.The cycloaddition process causes an 'Umpolung' at the carbon