142529-01-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 142529-01-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,2,5,2 and 9 respectively; the second part has 2 digits, 0 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 142529-01:
(8*1)+(7*4)+(6*2)+(5*5)+(4*2)+(3*9)+(2*0)+(1*1)=109
109 % 10 = 9
So 142529-01-9 is a valid CAS Registry Number.
InChI:InChI=1/C13H14N2O4S/c1-2-19-13(16)11-7-5-9-15(11)20(17,18)12-8-4-3-6-10(12)14/h3-9H,2,14H2,1H3
142529-01-9Relevant articles and documents
Heterocycles with a benzothiadiazeypine moiety. I. Synthesis of pyrrolo[1,2-b]-s-triazolo[3,4-d][1,2,5]benzothiadiazepine 5,5-dioxide
Artico,Silvestri,Stefancich
, p. 1433 - 1439 (2007/10/02)
Condensation of 2-nitrobenzenesulfonyl chloride with 2-ethoxycarbonyl-1H-pyrrole in the presence of potassium tert-butoxide and 18-crown-6 furnished 2-ethoxycarbonyl-1-(2-nitrobenzenesulfonyl)-1H-pyrrole. Reduction of nitro group to amino and subsequent c