344257-82-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 344257-82-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,4,4,2,5 and 7 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 344257-82:
(8*3)+(7*4)+(6*4)+(5*2)+(4*5)+(3*7)+(2*8)+(1*2)=145
145 % 10 = 5
So 344257-82-5 is a valid CAS Registry Number.
344257-82-5Relevant articles and documents
4-Alkyl(Aryl)-λ3-phosphorins from Butoxy-4-alkyl(aryl)-4-methoxy-1,4-dihydrophosphorins
Maerkl, Gottfried,Baier, Horst,Liebl, Rainer
, p. 919 - 942 (2007/10/02)
The (1Z,4Z)-1,5-dilithio-3-R-3-methoxy-1,4-pentadienes 9 have been obtained by cleavage of 1,1-dibutyl-4-R-4-methoxy-1,4-dihydrostannins 1 with butyllithium.Reaction of 9 with butoxydichlorophosphorane at -78 deg C gives the cis/trans-isomeric 1-butoxy-4-
