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CAS RN: 63422-71-9 | Product Number: E0993

(R)-(-)-α-[[(4-Ethyl-2,3-dioxo-1-piperazinyl)carbonyl]amino]benzeneacetic Acid

Purity: >98.0%(T)(HPLC)
  • (R)-(-)-2-(4-Ethyl-2,3-dioxopiperazine-1-carboxamido)-2-phenylacetic Acid
14   2  
8   10  

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Product Number E0993
Purity / Analysis Method >98.0%(T)(HPLC)
Molecular Formula / Molecular Weight C__1__5H__1__7N__3O__5 = 319.32  
Physical State (20 deg.C) Solid
CAS RN 63422-71-9
Reaxys Registry Number 3629459
PubChem Substance ID 253660152
MDL Number


Appearance White to Almost white powder to crystal
Purity(HPLC) min. 98.0 area%
Purity(Neutralization titration) min. 98.0 %
Specific rotation [a]20/D -64.0 to -68.0 deg(C=1,MeOH)
Properties (reference)
Melting Point 173 °C(dec.)
Specific Rotation -66° (C=1,MeOH)
Solubility (soluble in) Methanol
Pictogram Pictogram
Signal Word Warning
Hazard Statements H315 : Causes skin irritation.
H319 : Causes serious eye irritation.
Precautionary Statements P264 : Wash skin thoroughly after handling.
P280 : Wear protective gloves/ eye protection/ face protection.
P302 + P352 : IF ON SKIN: Wash with plenty of water.
P337 + P313 : If eye irritation persists: Get medical advice/ attention.
P305 + P351 + P338 : IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P362 + P364 : Take off contaminated clothing and wash it before reuse.
P332 + P313 : If skin irritation occurs: Get medical advice/ attention.
Related Laws:
Transport Information:
H.S.code* 2933.79-000
*This code is applied to the products when TCI exports from Japan and not for import in your country.
Synthesis of Cephalosporins antibiotics

Dual-action cephalosporins: cephalosporin 3'-quinolone carbamates

H. A. Albrecht, G. Beskid, N. H. Georgopapadakou, D. D. Keith, F. M. Konzelmann, D. L. Pruess, P. L. Rossman, C. C. Wei, J. G. Christenson, J. Med. Chem. 1991, 34, 2857.

Synthesis and antibacterial activity of lactivicin derivatives

N. Tamura, Y. Matsushita, Y. Kawano, K. Yoshioka, Chem. Pharm. Bull. 1990, 38, 116.

Further synthetic studies in penicillin C(6)-substitution including the versatile 6α-succinimidooxy leaving group

P. H. Milner, A. V. Stachulski, J. Chem. Soc., Perkin Trans. 1 1991, 2343.

Preparation and properties of 7α-formamido cephalosporins

A. W. Guest, C. L. Branch, S. C. Finch, A. C. Kaura, P. H. Milner, M. J. Pearson, R. J. Ponsford, T. C. Smale, J. Chem. Soc., Perkin Trans. 1 1987, 45.

PubMed Literature


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