39581-24-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 39581-24-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,9,5,8 and 1 respectively; the second part has 2 digits, 2 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 39581-24:
(7*3)+(6*9)+(5*5)+(4*8)+(3*1)+(2*2)+(1*4)=143
143 % 10 = 3
So 39581-24-3 is a valid CAS Registry Number.
39581-24-3Relevant articles and documents
Synthesis of some 4-oxothiochromenes and related compounds
Liepa, Andris J.,Nguyen, Oanh,Saubern, Simon
, p. 864 - 869 (2007/10/03)
Thiosalicylic acids react with 2-substituted N,N-dialkyl acetamides to give 3-substituted-N,N-dialkyl-2-amino-4-oxothiochromenes 13. N-Alkyl 2-piperidone and analogous caprolactams give derivatives of 1,2,3,4-tetrahydrothiochromeno[2, 3-b]pyridin-5-one 16
