Aspartic acid

Aspartic acid

Names
IUPAC names Trivial: Aspartic acid Systematic: 2-Aminobutanedioic acid
Ither names Aminosuccinic acid, asparagic acid, asparaginic acid
Identifiers
CAS Nummer	617-45-8 Y 56-84-8 (L-isomer) N 1783-96-6 (D-isomer) N
3D model (JSmol)	Interactive eemage Interactive eemage
ChEBI	CHEBI:22660 Y
ChEMBL	ChEMBL139661 Y
ChemSpider	411 Y
EC Nummer	200-291-6
KEGG	C16433 Y
PubChem CID	424
UNII	28XF4669EP Y
InChI InChI=1S/C4H7NO4/c5-2(4(8)9)1-3(6)7/h2H,1,5H2,(H,6,7)(H,8,9) Y Key: CKLJMWTZIZZHCS-UHFFFAOYSA-N Y InChI=1/C4H7NO4/c5-2(4(8)9)1-3(6)7/h2H,1,5H2,(H,6,7)(H,8,9) Key: CKLJMWTZIZZHCS-UHFFFAOYAE
SMILES O=C(O)CC(N)C(=O)O C(C(C(=O)O)N)C(=O)O
Properties
Chemical formula	C4H7NO4
Molar mass	133.10 g·mol−1
Appearance	colourless crystals
Density	1.7 g/cm3
Meltin pynt	270 °C (518 °F; 543 K)
Bylin pynt	324 °C (615 °F; 597 K) (decompones)
Solubility in watter	4.5 g/L
Acidity (pKa)	3.9
Hazards
NFPA 704	1 1 0
Except whaur itherwise notit, data are gien for materials in thair staundart state (at 25 °C [77 °F], 100 kPa).
N verify (whit is YN ?)
Infobox references

Aspartic acid (abbreviatit as Asp or D; encodit bi the codons [GAU an GAC]), kent as aspartate an aw, is an α-amino acid that is uised in the biosynthesis o proteins. It conteens an α-amino group (which is in the protonated −NH⁺
₃ form unner biological condeetions), an α-carboxylic acid group (which is in the deprotonatit −COO⁻ form unner biological condeetions), an a side chain CH₂COOH. Unner physiological condeetions in proteins the sidechain uisually occurs as the negatively chairged aspartate form, −COO⁻. It is semi-essential in humans, meanin the bouk can seenthesize it frae oxaloacetate.