132864-56-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 132864-56-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,2,8,6 and 4 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 132864-56:
(8*1)+(7*3)+(6*2)+(5*8)+(4*6)+(3*4)+(2*5)+(1*6)=133
133 % 10 = 3
So 132864-56-3 is a valid CAS Registry Number.
132864-56-3Relevant articles and documents
Synthesis, properties and cyclic carbonylation of 3-hydroxythiophen-2-carbohydroxamic acids
Geffken,Willmann
, p. 407 - 410 (2007/10/02)
Methyl 3-hydroxythiophen-2-carboxylate (3a) reacts smoothly with hydroxylamine to give the hydroxamic acid 2Aa. 5-Substituted 3-hydroxythiophen-2-carboxylic acids 5b-d are reacted with tetrahydropyranyloxyamine in the presence of 1,1'-carbonyldiimidazole
