190849-83-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 190849-83-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,0,8,4 and 9 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 190849-83:
(8*1)+(7*9)+(6*0)+(5*8)+(4*4)+(3*9)+(2*8)+(1*3)=173
173 % 10 = 3
So 190849-83-3 is a valid CAS Registry Number.
190849-83-3Relevant articles and documents
Ene reaction of allenic sulfones
Bintz-Giudicelli,Uguen
, p. 2973 - 2976 (2007/10/03)
Propargylic p-toluenesulfinates α-substituted by a Δ4,5 unsaturated side-chain rearrange thermally to give 1-tosylmethyl-cyclopentene derivatives with prior isomerisation into the corresponding allenic sulfones.
