143217-22-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 143217-22-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,3,2,1 and 7 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 143217-22:
(8*1)+(7*4)+(6*3)+(5*2)+(4*1)+(3*7)+(2*2)+(1*2)=95
95 % 10 = 5
So 143217-22-5 is a valid CAS Registry Number.
143217-22-5Relevant articles and documents
A Cascade Process of Hydroxamates Renders 1,6-Dioxa-3,9-diazaspiro[44]nonane-2,8-diones
Nazarian, Zohreh,Forsyth, Craig M.
, p. 2081 - 2091 (2021/02/01)
A cascade route to 1,6-dioxa-3,9-diazaspiro[4.4]nonane-2,8-diones from N, O -diacyl hydroxylamines consisting of a two-step procedure is described. The key transformation is a [3,3]-sigmatropic rearrangement of N, O -diacyl hydroxylamines promoted by form
