Home Categories Biochemical Engineering L-Aspartic acid
A0661312

L-Aspartic acid , 99% , 56-84-8

Synonym(s):
(S)-(+)-Aminosuccinic acid;(S)-Aminobutanedioic acid

CAS NO.:56-84-8

Empirical Formula: C4H7NO4

Molecular Weight: 133.1

MDL number: MFCD00002616

EINECS: 200-291-6

Pack Size Price Stock Quantity
100G RMB34.40 In Stock
500G RMB86.40 In Stock
2.5KG RMB328.00 In Stock
10kg RMB1117.60 In Stock
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Update time: 2022-07-08

PRODUCT Properties

Melting point: >300 °C (dec.)(lit.)
alpha  25 º (c=8, 6N HCl)
Boiling point: 245.59°C (rough estimate)
Density  1.66
refractive index  1.4540 (estimate)
FEMA  3656 | L-ASPARTIC ACID
storage temp.  Store below +30°C.
solubility  H2O: 5 mg/mL
form  powder
pka 1.99(at 25℃)
color  White
PH 2.5-3.5 (4g/l, H2O, 20℃)
Odor acid taste
optical activity [α]20/D +24.7±1°, c = 5% in 5 M HCl
Odor Type odorless
Water Solubility  5 g/L (25 ºC)
λmax λ: 260 nm Amax: 0.20
λ: 280 nm Amax: 0.10
JECFA Number 1429
Merck  14,840
BRN  1723530
Stability: Stable. Combustible. Incompatible with strong oxidising agents.
InChIKey CKLJMWTZIZZHCS-REOHCLBHSA-N
LogP -0.67

Description and Uses

L-Aspartic acid is the L-form of the aspartic acid. It is one of the 20 amino acids that used in the protein synthesis. It is the non-essential amino acids for humans as it can be synthesized in vivo. It is important in the synthesis of other amino acids and some nucleotides, and is a metabolite in the citric acid and urea cycles. In animals, it may be used as a neurotransmitter. It can be chemically synthesize from the diethyl sodium phthalimidomalonate. Currently, almost all the aspartic acids are manufactured in China. Its application include being used as low calorie sweetener (as the part of the aspartame), scale and corrosion inhibitor, and in resins. One of its growing applications is for the manufacturing of biodegradable superabsorbent polymer, polyaspartic acid. It can also be used in fertilizer industry to improve water retention and nitrogen uptake.

l-aspartic acid is an amino acid used as a skin-conditioning agent.

Safety

Symbol(GHS) 
GHS07
Signal word  Warning
Hazard statements  H302
Precautionary statements  P264-P270-P301+P312-P501
Hazard Codes  Xi,Xn
Risk Statements  36-36/37/38-20/21/22
Safety Statements  26-24/25-22-36
WGK Germany  2
RTECS  CI9098500
10
TSCA  Yes
HazardClass  IRRITANT
HS Code  29224995
Toxicity LD50 intraperitoneal in mouse: 6gm/kg

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