83252-97-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 83252-97-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,3,2,5 and 2 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 83252-97:
(7*8)+(6*3)+(5*2)+(4*5)+(3*2)+(2*9)+(1*7)=135
135 % 10 = 5
So 83252-97-5 is a valid CAS Registry Number.
83252-97-5Relevant articles and documents
TAUTOMERIE OXYDE DE PHOSPHINO-YLURIQUE
Kolodiazhnyi, Oleg I.
, p. 499 - 502 (2007/10/02)
Phosphine oxydes Ph2P(O)CH(SO2C6H4X)2 are reversibly izomerised to ylides with a P-OH group Ph2P(OH)=C(SO2C6H4X)2.The phosphine oxyde-P-OH ylid equilibrium depends on the solvent nature, temperature and substituents X at the SO2C6H4X group.