136497-59-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 136497-59-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,6,4,9 and 7 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 136497-59:
(8*1)+(7*3)+(6*6)+(5*4)+(4*9)+(3*7)+(2*5)+(1*9)=161
161 % 10 = 1
So 136497-59-1 is a valid CAS Registry Number.
InChI:InChI=1/C20H10N2O6/c23-19(24)9-3-1-5-13-17(9)21-11-8-16-12(7-15(11)27-13)22-18-10(20(25)26)4-2-6-14(18)28-16/h1-8H,(H,23,24)(H,25,26)
136497-59-1Relevant articles and documents
Triphenodioxazine-1,8-dicarboxylic Acid as an Oxidation Product of 3-Hydroxyanthranilic Acid
Hick, Larry A.,Manthey, Michael K.,Truscott, Roger J. W.
, p. 1157 - 1160 (2007/10/02)
The oxidation of 3-hydroxyanthranilic acid (3OHA) 1 by aqueous buffered potassium ferricyanide produces a number of coloured compounds.These include cinnabarinic acid 2 (yellow), a p-quinone dimer 3 (red) and 9-carboxy-2-hydroxy-3H-phenoxazin-3-one 4 (bro