139335-40-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 139335-40-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,3,3 and 5 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 139335-40:
(8*1)+(7*3)+(6*9)+(5*3)+(4*3)+(3*5)+(2*4)+(1*0)=133
133 % 10 = 3
So 139335-40-3 is a valid CAS Registry Number.
139335-40-3Relevant academic research and scientific papers
Synthesis of 2-substituted 1,3,4-thiadiazol-5-ylacetic, propionic, and glutaric acids
Toyooka,Kasai,Hori,Kawashima,Shibuya,Kubota
, p. 2837 - 2841 (2007/10/02)
1,3,4-Thiadiazol-5-ylacetic, propionic, and glutaric acids (3-5) were synthesized via ethyl 2-substituted 1,3,4-thiadiazol-5-ylacetates (11 and 17) as key intermediates.
