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25334-63-8

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25334-63-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 25334-63-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,5,3,3 and 4 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 25334-63:
(7*2)+(6*5)+(5*3)+(4*3)+(3*4)+(2*6)+(1*3)=98
98 % 10 = 8
So 25334-63-8 is a valid CAS Registry Number.

25334-63-8Downstream Products

25334-63-8Relevant articles and documents

Chiral Synthesis of McGeachin-Type Bisaminals

Chen, Yang,Hou, Shili,Li, Siqi,Xu, Jiaxi,Yang, Zhanhui

, p. 3709 - 3716 (2020)

Bridged [3.3.1]-bisaminal structures, namely 6,12-epiminodibenzo[b,f][1,5]diazocines, are herein named McGeachin-Type bisaminals. The TsOH-catalyzed chiral synthesis of McGeachin-Type bisaminals is first developed by condensation of two molecules of 2-(methylamino)benzaldehyde and one molecule of chiral amines. Two chiral diastereomers are generated simultaneously and are isolated by column chromatography in a total yield of up to 99%. The absolute structure of one stereoisomer was determined by X-ray crystallography.

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