155990-40-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 155990-40-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,5,9,9 and 0 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 155990-40:
(8*1)+(7*5)+(6*5)+(5*9)+(4*9)+(3*0)+(2*4)+(1*0)=162
162 % 10 = 2
So 155990-40-2 is a valid CAS Registry Number.
155990-40-2Relevant articles and documents
Synthesis of 2-(1-nitroalkylidene)-cycloalkanones
Boelle,Schneider,Gerardin,Loubinoux
, p. 2563 - 2570 (2007/10/02)
Reaction of 1-(1-nitroalkyl)-cycloalkenes epoxide with silica gel afforded the corresponding 2-(1-nitroalkylidene)-cycloalkanols which were further oxidized with chronic acid-sulfuric acid in 2-(1-nitroalkylidene)-cycloalkanones.
