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77717-40-9

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77717-40-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 77717-40-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,7,1 and 7 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 77717-40:
(7*7)+(6*7)+(5*7)+(4*1)+(3*7)+(2*4)+(1*0)=159
159 % 10 = 9
So 77717-40-9 is a valid CAS Registry Number.

77717-40-9Relevant articles and documents

The Synthesis, Configuration and Conformation of cis- and trans-3-Amino-3,4-dihydro-1-hydroxy-4-methylcarbostyrils and Other Configurationally Related Compounds

McCord, Tommy J.,Smith, Sherrel C.,Tabb, David L.,Davis, Alvie L.

, p. 1035 - 1039 (2007/10/02)

The cis- and trans-3-amino-3,4-dihydro-1-hydroxy-4-methylcarbostyrils (Ia and Ib) were synthesized by catalytic hydrogenation of erythro- and threo-α-amino-β-(o-nitrophenyl)butyric acid hydrochlorides, IIIa and IIIb, respectively, under acidic conditions.

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