140658-99-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 140658-99-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,0,6,5 and 8 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 140658-99:
(8*1)+(7*4)+(6*0)+(5*6)+(4*5)+(3*8)+(2*9)+(1*9)=137
137 % 10 = 7
So 140658-99-7 is a valid CAS Registry Number.
140658-99-7Relevant articles and documents
Calixarenes. 29. Aroylation and Arylmethylation of Calixaarenes
Kanamathareddey, Suseela,Gutsche, C. David
, p. 3160 - 3166 (2007/10/02)
Aroylations and arylmethylations of p-tert-butylcalixarene have been carried out using a variety of para-substituted aroyl chlorides and arylmethyl halides to determine the effect of para substituents on the structural and/or conformational outcome of