420-48-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 420-48-4 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 4,2 and 0 respectively; the second part has 2 digits, 4 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 420-48:
(5*4)+(4*2)+(3*0)+(2*4)+(1*8)=44
44 % 10 = 4
So 420-48-4 is a valid CAS Registry Number.
InChI:InChI=1/CCl2FI/c2-1(3,4)5
420-48-4Relevant articles and documents
PREPARATION OF HALO-F-METHANES VIA POTASSIUM FLUORIDE-HALOGEN CLEAVAGE OF HALO-F-METHYLPHOSPHONIUM SALTS
Burton, D. J.,Shin-Ya, S.,Kesling, H.S.
, p. 89 - 98 (2007/10/02)
Treatment of halo-F-methylphosphonium salts with potassium fluoride and halogen (I2, Br2, ICl, IBr) gives modest yields of halo-F-methanes.This method of preparation augments the classical Hunsdiecker approach to these materials.
