549509-40-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 549509-40-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,4,9,5,0 and 9 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 549509-40:
(8*5)+(7*4)+(6*9)+(5*5)+(4*0)+(3*9)+(2*4)+(1*0)=182
182 % 10 = 2
So 549509-40-2 is a valid CAS Registry Number.
549509-40-2Relevant academic research and scientific papers
Synthesis of discrete mass poly(butylene glutarate) oligomers
Williams, John B.,Chapman, Toby M.,Hercules, David M.
, p. 3898 - 3908 (2007/10/03)
A series of discrete mass oligomers of the perfectly alternating copolymer poly(butylene glutarate) containing 2, 4, 8, 16, 32, and 64 structural units have been synthesized from glutaric anhydride and butanediol using an iterative divergent-convergent st