666705-67-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 666705-67-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,6,6,7,0 and 5 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 666705-67:
(8*6)+(7*6)+(6*6)+(5*7)+(4*0)+(3*5)+(2*6)+(1*7)=195
195 % 10 = 5
So 666705-67-5 is a valid CAS Registry Number.
666705-67-5Relevant articles and documents
Intramolecular hydroamination of alkynes catalyzed by Pd(PPh 3)4/triphenylphosphine under neutral conditions
Bajracharya, Gan B.,Huo, Zhibao,Yamamoto, Yoshinori
, p. 4883 - 4886 (2007/10/03)
The intramolecular hydroamination of alkynes tethered with amino group 1 in the presence of catalytic amounts of Pd(PPh3)4 and PPh3 in benzene at 100°C proceeded smoothly without the use of any additional acid source to af
