219954-50-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 219954-50-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,9,9,5 and 4 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 219954-50:
(8*2)+(7*1)+(6*9)+(5*9)+(4*5)+(3*4)+(2*5)+(1*0)=164
164 % 10 = 4
So 219954-50-4 is a valid CAS Registry Number.
219954-50-4Relevant academic research and scientific papers
The First Total Synthesis of Grandinal, a New Phloroglucinol Derivative Isolated from Eucalyptus grandis
Matsumoto, Takuya,Singh, Inder Pal,Etoh, Hideo,Tanaka, Hitoshi
, p. 210 - 211 (2007/10/03)
The first total synthesis of grandinal (1) is accomplished by biomimetic cycloaddition of the jensenone derivative (2) and the o-quinone methide (3) generated by oxidation of grandinol (4).
