139449-31-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 139449-31-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,4,4 and 9 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 139449-31:
(8*1)+(7*3)+(6*9)+(5*4)+(4*4)+(3*9)+(2*3)+(1*1)=153
153 % 10 = 3
So 139449-31-3 is a valid CAS Registry Number.
139449-31-3Relevant academic research and scientific papers
Santhosh, K. C.,Balasubramanian, K. K.
, p. 7727 - 7730 (1991)
A simple and high yielding route to 3-alkylchromanones and 3-alkylchromones has been achieved from 3-alkyl-3-phenylsulphonyl-4-chromanones.
