74144-32-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 74144-32-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,1,4 and 4 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 74144-32:
(7*7)+(6*4)+(5*1)+(4*4)+(3*4)+(2*3)+(1*2)=114
114 % 10 = 4
So 74144-32-4 is a valid CAS Registry Number.
74144-32-4Relevant articles and documents
Ein cyclisches Carbodiphosphoran und eine offenkettige Vergleichsverbindung
Schmidbaur, Hubert,Costa, Thomas
, p. 3063 - 3069 (2007/10/02)
The cyclic carbodiphosphorane 8 is prepared from bis(diphenylphosphino)methane (1) and 1,3-dibromopropane, via a diphosphonium salt 6 and a semiquaternary salt 7, throug transylidation with salt-free trimethyl methylene phosphorane.The structure is establ