74869-48-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 74869-48-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,8,6 and 9 respectively; the second part has 2 digits, 4 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 74869-48:
(7*7)+(6*4)+(5*8)+(4*6)+(3*9)+(2*4)+(1*8)=180
180 % 10 = 0
So 74869-48-0 is a valid CAS Registry Number.
74869-48-0Relevant articles and documents
Synthesis of 1,2-Dimethylpyrene, 1,3-Dimethylpyrene and 1,2,3-Trimethylpyrene
Hempenius, Mark A.,Lugtenburg, Johan,Cornelisse, Jan
, p. 635 - 638 (2007/10/02)
The title compounds have been prepared, starting from 1H-phenalene 1.The method described in this paper is an efficient procedure for introducing methyl groups into the A-ring of pyrene.
