17547-89-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 17547-89-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,7,5,4 and 7 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 17547-89:
(7*1)+(6*7)+(5*5)+(4*4)+(3*7)+(2*8)+(1*9)=136
136 % 10 = 6
So 17547-89-6 is a valid CAS Registry Number.
InChI:InChI=1/C12H13NO3S/c1-7(12(15)16-2)10-11(14)13-8-5-3-4-6-9(8)17-10/h3-7,10H,1-2H3,(H,13,14)
17547-89-6Relevant articles and documents
Reactions of Cyclic Anhydrides: Part VIII - Formation of 2-Oxobenzothazines from o-Aminothiophenol and Maleic Anhydride Derivatives
Wagh, S. B.,Shaikh, A. S.,Balasubramaniyan, V.
, p. 868 - 871 (2007/10/02)
Reaction of o-aminothiophenol (o-ATP) with maleic anhydride, maleic acid or fumaric acid furnishes 2-(oxobenzothiazinyl)acetic acid (Ia); with methyl hydrogenmaleate or methyl hydrogenfumarate, a mixture of Ia and its methyl ester Ib (80 : 20 and 65 : 35
