74955-20-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 74955-20-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,9,5 and 5 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 74955-20:
(7*7)+(6*4)+(5*9)+(4*5)+(3*5)+(2*2)+(1*0)=157
157 % 10 = 7
So 74955-20-7 is a valid CAS Registry Number.
74955-20-7Relevant articles and documents
REACTIONS OF NITRILE OXIDES WITH 2-LITHIO-1,3-DITHIANES, SYNTHESIS OF α-DIKETONES
Yamamori, Teruo,Adachi, Ikuo
, p. 1747 - 1750 (2007/10/02)
Nitril oxides (2) were treated with 2-lithio-1,3-dithianes (4) to give in good yields masked ketoximes (5), new synthetic tools for α-diketones.