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213757-82-5

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213757-82-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 213757-82-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,3,7,5 and 7 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 213757-82:
(8*2)+(7*1)+(6*3)+(5*7)+(4*5)+(3*7)+(2*8)+(1*2)=135
135 % 10 = 5
So 213757-82-5 is a valid CAS Registry Number.

213757-82-5Downstream Products

213757-82-5Relevant articles and documents

Resolution and conformational analysis of diastereoisomeric esters of cis- and trans-2-(aminomethyl)-1-carboxycyclopropanes

Duke, Rujee K.,Allan, Robin D.,Chebib, Mary,Greenwood, Jeremy R.,Johnston, Graham A. R.

, p. 2533 - 2548 (1998)

(1R,2S)-, (1S,2R)-, (1R,2R)- and (1S,2S)-2-(Aminomethyl)-1- carboxycyclopropanes, conformationally restricted analogues of the neurotransmitter γ-aminobutyric acid (GABA), have been resolved by chromatographic separation of the corresponding diastereoisomeric esters which were formed between the cis- and trans-2-(acetamidomethyl)1- carboxycyclopropanes with (R)-(-)-pantolactone. 1H NMR, semi-empirical conformational analysis, ab initio (DFT) structure and NMR shielding tensor calculations of the cis-diastereoisomers allowed the absolute configuration assignments of the cis-amino acids.

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