Cas 81740-10-5,2-(trimethylsilyl)isophthalonitrile

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Check Digit Verification of cas no

The CAS Registry Mumber 81740-10-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,7,4 and 0 respectively; the second part has 2 digits, 1 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 81740-10:
(7*8)+(6*1)+(5*7)+(4*4)+(3*0)+(2*1)+(1*0)=115
115 % 10 = 5
So 81740-10-5 is a valid CAS Registry Number.

81740-10-5Upstream product

81740-10-5Downstream Products

1422257-44-0 2-trimethylsilylisophthalaldehyde

81740-10-5Relevant articles and documents

Functionalizations of Mixtures of Regioisomeric Aryllithium Compounds by Selective Trapping with Dichlorozirconocene

Castell-Mic, Alicia,Herbert, Simon A.,Len, Thierry,Bein, Thomas,Knochel, Paul

, p. 401 - 404 (2016)

The reaction of mixtures of aryllithium regioisomers obtained either by directed lithiation or by Br/Li exchange with substoichiometric amounts of Cp2ZrCl2 proceeds with high regioselectivity. The least sterically hindered regioisome

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81740-10-5