141942-39-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 141942-39-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,1,9,4 and 2 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 141942-39:
(8*1)+(7*4)+(6*1)+(5*9)+(4*4)+(3*2)+(2*3)+(1*9)=124
124 % 10 = 4
So 141942-39-4 is a valid CAS Registry Number.
141942-39-4Relevant articles and documents
SYNTHESIS OF SOME BENZOFURO BENZOPYRONES
Joshi, S. C.,Trivedi, K. N.
, p. 261 - 266 (2007/10/02)
7-Hydroxy-3-phenyl--1-benzopyran-4-one 1a was condensed with 2-bromocyclohexanone to yield the corresponding ether 2a which on alkaline hydrolysis gave tetrahydrobenzofuran derivative 3a, the pyran ring being opened up during this reaction.Compound 3a
