123858-74-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 123858-74-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,3,8,5 and 8 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 123858-74:
(8*1)+(7*2)+(6*3)+(5*8)+(4*5)+(3*8)+(2*7)+(1*4)=142
142 % 10 = 2
So 123858-74-2 is a valid CAS Registry Number.
123858-74-2Relevant articles and documents
New Syntheses of 1,3-Oxazines, Thiazoles, and 1,2-Dithioles
Capuano, Lilly,Bolz, Gerda,Burger, Robert,Burkhardt, Volker,Huch, Volker
, p. 239 - 243 (2007/10/02)
The 2-diazo-1,3-diketones 1 react with thioamides 4 via the acyl ketenes 3, resulting from Wolff rearrangement, to give the 1,3-oxazine-4-ones 10; however, by increasing the electrophilicity of the diazo compounds or the nucleophilicity of the thioamides,
