64821-66-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 64821-66-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,4,8,2 and 1 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 64821-66:
(7*6)+(6*4)+(5*8)+(4*2)+(3*1)+(2*6)+(1*6)=135
135 % 10 = 5
So 64821-66-5 is a valid CAS Registry Number.
64821-66-5Relevant articles and documents
2,4-Dinitrophenol as an activating reagent in a facile preparation of cyclic phosphate triesters
Amigues, Eric J.,Migaud, Marie E.
, p. 1001 - 1004 (2007/10/03)
2,4-Dinitrophenol was employed with benzyloxy-bis-(diisopropylamino) phosphine to synthesise the cyclic phosphate derivatives of a series of alkane diols (HO-(CH2)n-OH, n=2-6) in good isolated yields. Tetrazole and DNP were compared