138683-69-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 138683-69-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,6,8 and 3 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 138683-69:
(8*1)+(7*3)+(6*8)+(5*6)+(4*8)+(3*3)+(2*6)+(1*9)=169
169 % 10 = 9
So 138683-69-9 is a valid CAS Registry Number.
InChI:InChI=1/C13H10N2O/c1-2-10-12-9(6-7-14-10)8-4-3-5-11(16)13(8)15-12/h2-7,15-16H,1H2
138683-69-9Relevant academic research and scientific papers
Carbolines. Part VII. Anisidines, convenient tools to synthesize hydroxy-β-carbolines
Rocca,Marsais,Godard,Queguiner,Adams,Alo
, p. 1171 - 1175 (2007/10/02)
The paper describes a convenient synthesis of hydroxy-β-carbolines from commercial anisidines based on key steps such as metalation, cross-coupling and cyclization. The first total synthesis of a major cytotoxic constituent of a marine bryozoan is also re
