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127358-21-8

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127358-21-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 127358-21-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,7,3,5 and 8 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 127358-21:
(8*1)+(7*2)+(6*7)+(5*3)+(4*5)+(3*8)+(2*2)+(1*1)=128
128 % 10 = 8
So 127358-21-8 is a valid CAS Registry Number.

127358-21-8Relevant articles and documents

Specific Inclusion of 1,2-Dimethoxybenzene Derivatives by Crystalline (R)-Arylglycyl-(R)-phenylglycines and Its Structure

Akazome, Motohiro,Yanagita, Yukiko,Sonobe, Ryo-Ichi,Ogura, Katsuyuki

, p. 2823 - 2827 (1997)

The crystallization of (R)-arylglycyl-(R)-phenylglycine (1, aryl=phenyl; 2, aryl=1-naphthyl) in the presence of 1,2-dimethoxybenzene or its derivatives affords an inclusion compound. A single-crystal X-ray analysis has shown that, in a 1,2-dimethyoxybenzene inclusion compound, dipeptide molecules arrange in a sheet and the 1,2-dimethoxybenzene lies at the end in a void between the sheets by being anchored to an ammonio hydrogen on the sheet via three-center hydrogen bonding. The distance between the sheets was found to be variable according to the length of the guest 1,2-dimethoxybenzene derivatives, as if they were pillars that support the sheets.

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