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6777-06-6

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6777-06-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 6777-06-6 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,7,7 and 7 respectively; the second part has 2 digits, 0 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 6777-06:
(6*6)+(5*7)+(4*7)+(3*7)+(2*0)+(1*6)=126
126 % 10 = 6
So 6777-06-6 is a valid CAS Registry Number.

6777-06-6Downstream Products

6777-06-6Relevant articles and documents

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Rothman,Day

, p. 111 (1954)

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An efficient approach for the synthesis of N-1 substituted hydantoins

Kumar, Vinod,Kaushik,Mazumdar, Avik

experimental part, p. 1910 - 1916 (2009/04/04)

An efficient three-step route for the synthesis of N-1 alkyl/aryl- substituted hydantoins was developed from inexpensive commercially available substrates. The reaction of amines with cyanogen bromide takes place to give monoalkyl/aryl cyanamides. This on treatment with methyl bromoacetate in the presence of sodium hydride in tetrahydrofuran affords methyl N-cyano-N-alkyl/arylaminoacetate, which undergoes hydrolysis and cyclization in the presence of 50% H2SO4 to afford N-1 substituted hydantoins in very good-to-excellent yields. Wide varieties of final products having primary, secondary, tertiary, and aryl substituents at the N-1 position were successfully synthesized by this method. Wiley-VCH Verlag GmbH & Co. KGaA, 2008.

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