335305-20-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 335305-20-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,3,5,3,0 and 5 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 335305-20:
(8*3)+(7*3)+(6*5)+(5*3)+(4*0)+(3*5)+(2*2)+(1*0)=109
109 % 10 = 9
So 335305-20-9 is a valid CAS Registry Number.
335305-20-9Relevant 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).
