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129012-12-0

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129012-12-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 129012-12-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,9,0,1 and 2 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 129012-12:
(8*1)+(7*2)+(6*9)+(5*0)+(4*1)+(3*2)+(2*1)+(1*2)=90
90 % 10 = 0
So 129012-12-0 is a valid CAS Registry Number.

129012-12-0Relevant articles and documents

2,3-DIPHENYL- AND 2,3,6,7-TETRAPHENYL-HEXA-AZATRIPHENYLENE, LIGANDS FOR TRANSITION METALS

Nasielski, J.,Moucheron, C.,Verhoeven, C.,Nasilski-Hinkens, R.

, p. 2573 - 2576 (2007/10/02)

2,3-Diphenyl-1,4,5,8,9,12-hexa-azatriphenylene 2 and 2,3,6,7-tetraphenyl-1,4,5,8,9,12-hexa-azatriphenylene 3 can be synthesized by the direct condensation of hexa-aminobenzene with glyoxal and benzil.It is, however, not possible to make specifically one of the compounds, which is always accompanied by the parent compound 1 and the fully substituted hexaphenyl-hexaazatriphenylene 4.It is nevertheless possible to optimize the yields of 2 and 3 by a careful choice of the experimental conditions.

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