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1581251-31-1

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1581251-31-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1581251-31-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,5,8,1,2,5 and 1 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1581251-31:
(9*1)+(8*5)+(7*8)+(6*1)+(5*2)+(4*5)+(3*1)+(2*3)+(1*1)=151
151 % 10 = 1
So 1581251-31-1 is a valid CAS Registry Number.

1581251-31-1Downstream Products

1581251-31-1Relevant articles and documents

Fused azacalix[4]arenes

Haddoub, Rose,Touil, Mounia,Chen, Zhongrui,Raimundo, Jean-Manuel,Marsal, Philippe,Elhabiri, Mourad,Siri, Olivier

, p. 745 - 752 (2014)

The synthesis of unprecedented fused azacalixarenes (dimers and trimer) through successive nucleophilic aromatic substitutions is described. Absorption spectrophotometric and theoretical studies demonstrated that these oligomers share common phenyl moieties that enable conjugation of the whole π-system and a multiconcave geometry with aligned cavities because of the high flexibility of these macrocycles.

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