104132-51-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 104132-51-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,4,1,3 and 2 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 104132-51:
(8*1)+(7*0)+(6*4)+(5*1)+(4*3)+(3*2)+(2*5)+(1*1)=66
66 % 10 = 6
So 104132-51-6 is a valid CAS Registry Number.
104132-51-6Relevant articles and documents
Synthesis of Chloroformamidines and 1,3-Oxazin-4-ones from Oxocarbonyl Chlorides
Ried, Walter,Schoepke, Klaus
, p. 1997 - 2003 (2007/10/02)
Reaction of the 2-oxocarbonyl chlorides 2a-c, 4a-c, and 6a, b with the nitriles 1a-n gives the chloroformamidines 3a-h, 5a-r, 7a-f, and 8a-d. 2,4-Dichloroacetoacetyl chloride (9) reacts with the nitriles 1a, c, e, and f to afford the oxazinones 10a-d.
