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95837-44-8

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95837-44-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 95837-44-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,5,8,3 and 7 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 95837-44:
(7*9)+(6*5)+(5*8)+(4*3)+(3*7)+(2*4)+(1*4)=178
178 % 10 = 8
So 95837-44-8 is a valid CAS Registry Number.

95837-44-8Upstream product

95837-44-8Relevant articles and documents

A New and Efficient Preparation of Cyclic Carbodiimides from Bis(iminophosphoranes) and the System Boc2O/DMAP

Molina, Pedro,Alajarin, Mateo,Sanchez-Andrada, Pilar,Elguero, Jose,Jimeno, Maria Luisa

, p. 7306 - 7315 (1994)

A one-pot synthesis of cyclic carbodiimides which involves reaction of C,C-bis(aryliminophosphoranes) connected by aliphatic bridges with Boc2O in the presence of DMAP is described.The method is also applicable when a heteroatom such as oxygen or nitrogen is incorporated into the tether connecting the two aromatic rings.A conformation study has been carried out on carbodiimide 23a, which possess a central nine-membered ring, using 1H NMR spectroscopy and semiempirical as well as molecular mechanics calculations.

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