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681815-36-1

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681815-36-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 681815-36-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,8,1,8,1 and 5 respectively; the second part has 2 digits, 3 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 681815-36:
(8*6)+(7*8)+(6*1)+(5*8)+(4*1)+(3*5)+(2*3)+(1*6)=181
181 % 10 = 1
So 681815-36-1 is a valid CAS Registry Number.

681815-36-1Downstream Products

681815-36-1Relevant articles and documents

Synthesis of Novel 1,3,5-Tris(arylazo)benzenes via Pd-Catalyzed Couplings and Cu(I)-Mediated Direct Oxidations

Lim, Young-Kwan,Choi, Sunju,Park, Kyung Bae,Cho, Cheon-Gyu

, p. 2603 - 2606 (2004)

A series of novel 1,3,5-tris-azobenzenes were prepared from 1,3,5-trihalobenzene via Pd-catalyzed couplings of N-Boc aryl hydrazines and subsequent Cu(I)-mediated direct oxidations. The oxidation of tris-arylhydrazide provided the azobenzene as a mixture

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