1225022-72-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1225022-72-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,2,5,0,2 and 2 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1225022-72:
(9*1)+(8*2)+(7*2)+(6*5)+(5*0)+(4*2)+(3*2)+(2*7)+(1*2)=99
99 % 10 = 9
So 1225022-72-9 is a valid CAS Registry Number.
1225022-72-9Relevant academic research and scientific papers
Synthesis and chemical characterisation of new bis-thieno [2,3-b]thiophene derivatives
Mabkhoot, Yahia Nasser
experimental part, p. 3329 - 3337 (2010/09/18)
Using 3-methyl-4-phenylthieno[2,3-b]thiophene-2,5-dicarbohydrazide as synthon a series of new bis-heterocycles incorporating the thieno[2,3-b] thiophene nucleus was prepared and characterized.
