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90145-13-4

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90145-13-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 90145-13-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,1,4 and 5 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 90145-13:
(7*9)+(6*0)+(5*1)+(4*4)+(3*5)+(2*1)+(1*3)=104
104 % 10 = 4
So 90145-13-4 is a valid CAS Registry Number.

90145-13-4Relevant articles and documents

Regiospecific syntheses of the monomethylated 3-phenyldihydro-1,2,4-triazin-6(1H)-ones

Collins, David J.,Hughes, Timothy C.,Johnson, Wynona M.

, p. 463 - 468 (2007/10/03)

Unambiguous syntheses of four unreported monomethylated derivatives of 3-phenyldiliydro-1,2,4-triazin-6(1H)-ones, namely, the 1-methyl (2), 2-methyl (3), 4-methyl (4) and the imidic O-methyl derivative (5), are described. Regioselectivity was achieved for

1,3-Dipolar Cycloadditions, 91. The Chemistry of N-Methyl-C-phenylnitrilimine

Fliege, Werner,Grashey, Rudolf,Huisgen, Rolf

, p. 1194 - 1214 (2007/10/02)

The treatment of N'--N-methylhydrazinium bromide, accessible by bromination of benzaldehyde-N-methylhydrazone, with triethylamine furnishes the title compound; this method is superior to the thermolysis and photolysis of 2-methyl-5-phe

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