299957-44-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 299957-44-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,9,9,9,5 and 7 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 299957-44:
(8*2)+(7*9)+(6*9)+(5*9)+(4*5)+(3*7)+(2*4)+(1*4)=231
231 % 10 = 1
So 299957-44-1 is a valid CAS Registry Number.
299957-44-1Relevant academic research and scientific papers
Kraus, George A.,Zhang, Ning
, p. 5644 - 5646 (2000)
The synthesis of coumestrol has been achieved in five steps from 1,3-dimethoxybenzene. The key step is a photochemical cyclization of a glyoxylate ester.
