130281-63-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 130281-63-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,0,2,8 and 1 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 130281-63:
(8*1)+(7*3)+(6*0)+(5*2)+(4*8)+(3*1)+(2*6)+(1*3)=89
89 % 10 = 9
So 130281-63-9 is a valid CAS Registry Number.
130281-63-9Relevant articles and documents
Reactions of ethinyltriphenylphosphonium salts with phosphoniumylides
Bestmann,Kisielowski
, p. 3301 - 3304 (2007/10/02)
Ethinylphosphonium salts 4 react with methylenetriphenylphosphorane 5 to give 1,3-bis-(triphenylphosphonio)propenid-cation salts 6, whereas from 4 with benzylidenetriphenylphosphorane 10α and isopropylidenetriphenylphosphorane 10β the 1.3-diphosphaallyl-c