151824-92-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 151824-92-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,1,8,2 and 4 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 151824-92:
(8*1)+(7*5)+(6*1)+(5*8)+(4*2)+(3*4)+(2*9)+(1*2)=129
129 % 10 = 9
So 151824-92-9 is a valid CAS Registry Number.
151824-92-9Relevant 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
