82631-90-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 82631-90-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,2,6,3 and 1 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 82631-90:
(7*8)+(6*2)+(5*6)+(4*3)+(3*1)+(2*9)+(1*0)=131
131 % 10 = 1
So 82631-90-1 is a valid CAS Registry Number.
82631-90-1Relevant articles and documents
Phosphorus-31 to Lithium-7 Nuclear Spin Coupling in Lithiated Organophosphorous Compounds
Colquhoun, Ian J.,McFarlane, H. Christina E.,McFarlane, William
, p. 220 - 221 (1982)
31P and 7Li n.m.r.spectra with J(31P-7Li) = ca. 50 Hz show LiCH(PPh2)2 and LiCH to be covalent monomeric, and LiPPh2 to be covalent dimeric in Et2O solution at low temperatures.