155887-45-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 155887-45-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,5,8,8 and 7 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 155887-45:
(8*1)+(7*5)+(6*5)+(5*8)+(4*8)+(3*7)+(2*4)+(1*5)=179
179 % 10 = 9
So 155887-45-9 is a valid CAS Registry Number.
155887-45-9Relevant academic research and scientific papers
Matsuo,Arase
, p. 715 - 717 (1994)
Cerpegin (1), a new pyridone alkaloid, was synthesized starting from the Michael reaction of phenylthioacetonitrile (2) and 2-methoxycarbonyl-4,4- dimethyl-2-buten-4-olide (3) in five steps. Catalytic hydrogenation of a nitrile group in the presence of a
