141240-89-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 141240-89-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,1,2,4 and 0 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 141240-89:
(8*1)+(7*4)+(6*1)+(5*2)+(4*4)+(3*0)+(2*8)+(1*9)=93
93 % 10 = 3
So 141240-89-3 is a valid CAS Registry Number.
141240-89-3Relevant academic research and scientific papers
The reaction of diphenylketene with tert-butylphosphaethyne formation of a 1-phosphanaphthalene
Markl,Kallmunzer,Noth,Pohlmann
, p. 1597 - 1600 (2007/10/02)
Tert-butylphosphaethyne reacts with diphenylketene at 100 °C to give the 2-tert-butyl-3-hydroxy-4-phenyl-1-phosphanaphthalene acylated at the phenolic OH by diphenylketene.
