909270-36-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 909270-36-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,0,9,2,7 and 0 respectively; the second part has 2 digits, 3 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 909270-36:
(8*9)+(7*0)+(6*9)+(5*2)+(4*7)+(3*0)+(2*3)+(1*6)=176
176 % 10 = 6
So 909270-36-6 is a valid CAS Registry Number.
909270-36-6Relevant articles and documents
Convergent synthesis of pyragonicin
Takahashi, Shunya,Hongo, Yayoi,Ogawa, Narihito,Koshino, Hiroyuki,Nakata, Tadashi
, p. 6305 - 6308 (2007/10/03)
This paper describes a second-generation synthesis of an antitumor tetrahydropyran (THP) acetogenin, pyragonicin. The key step involved an olefin cross-metathesis between the THP segment and the terminal γ-lactone residue. The coupling reaction in the pre