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129135-01-9

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129135-01-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 129135-01-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,9,1,3 and 5 respectively; the second part has 2 digits, 0 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 129135-01:
(8*1)+(7*2)+(6*9)+(5*1)+(4*3)+(3*5)+(2*0)+(1*1)=109
109 % 10 = 9
So 129135-01-9 is a valid CAS Registry Number.

129135-01-9Upstream product

129135-01-9Relevant articles and documents

2-Methylpyridinium Salts as 1,4-Dinucleophiles. IV. Westphal Condensation with 2-Alkyl-1-aminoazinium Substrates

Matia, M. Paz,Navio, J. Luis Garcia,Vaquero, J. Jose,Alvarez-Builla, J.

, p. 661 - 665 (2007/10/02)

Condensation of 2-alkyl-1-aminopyridinium, quinolinium or 1-alkyl-2-aminoisoquinolinium salts with 1,2-acenaphthenequinone or 9,10-phenanthrenequinone in the presence of base, gave pyridopyridazinium salts in good yields.

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