158868-66-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 158868-66-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,8,8,6 and 8 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 158868-66:
(8*1)+(7*5)+(6*8)+(5*8)+(4*6)+(3*8)+(2*6)+(1*6)=197
197 % 10 = 7
So 158868-66-7 is a valid CAS Registry Number.
158868-66-7Relevant articles and documents
Reaction of O-Acyl-1,4-benzoquinone Monooximes with Cyclopentadiene
Avdeenko, A. P.,Glinyanaya, N. M.,Pirozhenko, V. V.
, p. 1066 - 1070 (2007/10/03)
Addition of cyclopentadiene to unsubstituted O-acyl-1,4-benzoquinone monooximes or their 2- or 3-methyl derivatives across the double bond of the quinone ring yielded the only endo-Z isomer, in spite of the possibility for isomerization around the C=N bon
