81467-20-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81467-20-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,4,6 and 7 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 81467-20:
(7*8)+(6*1)+(5*4)+(4*6)+(3*7)+(2*2)+(1*0)=131
131 % 10 = 1
So 81467-20-1 is a valid CAS Registry Number.
81467-20-1Relevant articles and documents
Cyclic Carbonylation of 3-Hydroxycarbohydroxamic Acids with 1,1'-Carbonyldiimidazole
Geffken, Detlef
, p. 219 - 225 (2007/10/02)
The reaction of 3-hydroxycarbohydroxamic acids 3 with 1,1'-carbonyldiimidazole produces as a function of the substitution of 3 heterocycles of type 1, 4, and 5.In the presence of imidazole the 3-(2-hydroxyalkyl)-1,4,2-dioxazol-5-ones 1 undergo rearrangeme
