139730-59-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 139730-59-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,7,3 and 0 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 139730-59:
(8*1)+(7*3)+(6*9)+(5*7)+(4*3)+(3*0)+(2*5)+(1*9)=149
149 % 10 = 9
So 139730-59-9 is a valid CAS Registry Number.
139730-59-9Relevant articles and documents
Intramolecular Oxypalladation and Cross-Coupling of Acetylenic Alkoxides
Luo, Fen-Tair,Schreuder, Inessa,Wang, Ren-Tzong
, p. 2213 - 2215 (2007/10/02)
Stereodefined 2-alkylidenetetrahydrofurans and pyrans were synthesized by treatment of alkyl or aryl acetylenic alcohols with n-BuLi in THF at 0 deg C followed by addition of a solution of 10 mol percent of Pd(OAc)2 or PdCl2 and PPh3 in THF and 1 equiv of
