Anmol Chemicals is the pioneer manufacturers of Aspartic acid, Pharmaceutical Excipients Chemicals in India. We offer Halal and Kosher Aspartic acid made in an ISO9001, ISO22000 (FSSC22000) and cGMP certified facility. Our group has several manufacturing facilities spread across the world, supported by toll manufacturers and representatives in UAE, Europe, Africa, USA, China and has several associated manufacturing facilities spread across India. All the Information on Physics, Chemistry, Applications, Uses and Technology on Manufacture of Aspartic acid is in these pages.
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D-Aspartic acid and L-Aspartic acid BP Ph Eur USP NF FCC Food Grade Manufacturers

CAS Number: 56-84-8 L-isomer and 1783-96-6 (D-isomer), EINECS EC Number: 200-291-6, Molecular Formula: HO2CCH2CH(NH2)CO2H or C4H7NO4, Molecular Weight: 133.10, FEMA number: 3656, H S Code 2922 49 85

Aspartic acid SDS GHS, MSDS Sheet of Manufacturers

Aspartic acid can refer to either enantiomer or a mixture of two forms or enantiomers of aspartic acid D- Aspartic acid and L- Aspartic acid. Of these two forms, only one, "L-aspartic acid", is directly incorporated into proteins. Other names of L-Aspartic acid are L-Aminosuccinic acid, 2-Aminobutanedioic acid.

General Properties and Specifications of L-Aspartic acid or L-Aminosuccinic acid, 2-Aminobutanedioic acid:
Appearance: White crystalline powder.
Assay: 99%
Heavy Metals: 10 ppm maximum.
Iron (Fe): 10 ppm
Loss on Drying: 0.2% ppm maximum.
Residue on Ignition: 0.1 % maximum.
Arsenic (As): 1 ppm maximum.
Relative density: about 1.7
Melting point: 270C literature.
Boiling point: 324C decomposes literature.
Solubility: Slightly soluble in water. Insoluble in ethanol.

Aspartic acid USP Grade Specifications:
C4H7NO4 --- 133.10
l-Aspartic acid --- CAS 56-84-8.

DEFINITION
Aspartic Acid contains NLT 98.5% and NMT 101.5% of aspartic acid (C4H7NO4), calculated on the dried basis.

IDENTIFICATION
A. Infrared Absorption

Residue on Ignition: NMT 0.1%
Chloride and Sulfate, Chloride:
Sample solution: Dissolve 0.7 g of Aspartic Acid in 10 mL of diluted nitric acid, and dilute with water to 15 mL.
Acceptance criteria: The Sample solution shows no more chloride than corresponds to 0.20 mL of 0.020 N hydrochloric acid (NMT 0.02%).
Chloride and Sulfate, Sulfate:
Sample solution: Dissolve 0.8 g of Aspartic Acid in 4 mL of hydrochloric acid, and dilute with water to 15 mL.
Acceptance criteria: The Sample solution shows no more sulfate than corresponds to 0.25 mL of 0.020 N sulfuric acid (NMT 0.03%).
Iron: NMT 10 ppm
Related Compounds: To pass the chromatography test.
Optical Rotation, Specific Rotation:
Sample solution: 80 mg/mL in 6 N hydrochloric acid
Acceptance criteria: +24.0° to +26.0°, at 20°
Loss on Drying:
Analysis: Dry at 105C for 3 h.
Acceptance criteria: NMT 0.5%
Packaging and Storage: Preserve in well-closed containers, and store protected from light.

Aspartic Acid BP Ph Eur Grade:
C4H7NO4 --- 133.1 --- CAS 56-84-8 
Action and use: Amino acid.

DEFINITION
Aspartic acid contains not less than 98.5 per cent and not more than the equivalent of 101.5 per cent of (2S)-2-aminobutanedioic acid, calculated with reference to the dried substance.

CHARACTERS
A white or almost white, crystalline powder or colourless crystals, slightly soluble in water, practically insoluble in alcohol. It dissolves in dilute mineral acids and in dilute solutions of alkali hydroxides.

IDENTIFICATION
First identification: A, C
Second identification: A, B, D
A. Specific optical rotation.
B. A suspension of 1 g in 10 mL of water is strongly acid.
C. Examine by infrared absorption spectrophotometry.
D. Examine the chromatograms obtained in the test for ninhydrin-positive substances. The principal spot in the chromatogram obtained with test solution (b) is similar in position, colour and size to the principal spot in the chromatogram obtained with reference solution (a).

TESTS
Appearance of solution: Dissolve 0.5 g in 1 M hydrochloric acid and dilute to 10 mL with the same acid. The solution is clear and not more intensely coloured than reference solution.
Specific optical rotation: Dissolve 2.000 g in hydrochloric acid and dilute to 25.0 mL with the same acid. The specific optical rotation is + 24.0 to + 26.0, calculated with reference to the dried substance.
Ninhydrin-positive substances: To pass the chromatography test.
Ammonium: 50 mg complies with limit test B (200 ppm).
Iron: In a separating funnel, dissolve 1.0 g in 10 mL of dilute hydrochloric acid. Shake with 3 quantities, each of 10 mL of methyl isobutyl ketone, shaking for 3 min each time. To the combined organic layers add 10 mL of water and shake for 3 min. The aqueous layer complies with the limit test for iron (10 ppm).
Loss on drying: Not more than 0.5 per cent, determined on 1.000 g by drying in an oven at 105C.
Sulfated ash: Not more than 0.1 per cent, determined on 1.0 g.

ASSAY
Dissolve 0.100 g in 50 mL of carbon dioxide-free water, with slight heating if necessary. Cool and add 0.1 mL of bromothymol blue solution. Titrate with 0.1 M sodium hydroxide until the colour changes from yellow to blue.
1 mL of 0.1 M sodium hydroxide is equivalent to 13.31 mg of C4H7NO4.

STORAGE
Protected from light.

L-Aspartic Acid FCC Food Grade Specifications:
L-Aminosuccinic Acid
C4H7NO4 Formula wt 133.10
CAS: [56-84-8]

DESCRIPTION
L-Aspartic Acid occurs as white crystals or as a crystalline powder. It is slightly soluble in water, but insoluble in alcohol and in ether. It melts at about 270C.
Function: Nutrient.

REQUIREMENTS
Identification: The infrared absorption spectrum.
Assay: Not less than 98.5% and not more than 101.5% of C4H7NO4, calculated on the dried basis.
Lead: Not more than 5 mg/kg.
Loss on Drying: Not more than 0.25%.
Optical (Specific) Rotation [alpha]D20°: Between +24.5° and +26.0°, calculated on the dried basis.
Residue on Ignition: Not more than 0.1%.

DL-Aspartic Acid FCC Food Grade Specifications:
DL-Aminosuccinic Acid
C4H7NO4 Formula wt 133.10
CAS: [617-45-8]

DESCRIPTION
DL-Aspartic Acid occurs as colorless or white crystals. It is slightly soluble in water, but insoluble in alcohol and in ether. It is optically inactive and melts with decomposition at about 280C.
Function: Nutrient.

REQUIREMENTS
Identification: The infrared absorption spectrum.
Assay: Not less than 98.5% and not more than 101.5% of C4H7NO4, calculated on the dried basis.
Lead: Not more than 5 mg/kg.
Loss on Drying: Not more than 0.3%.
Residue on Ignition: Not more than 0.1%.

D-Aspartic acid and L-Aspartic acid BP Ph Eur USP NF FCC Food Grade Manufacturers Exporters

Anmol Chemicals
S-8, SARIFA MANSION, 2ND FLANK ROAD, CHINCHBUNDER, MUMBAI 400009, INDIA
TEL: (OFFICE) 91-22-23770100, 23726950, 23774610, 23723564. FAX: 91-22-23728264

e-mail: anmolc@mtnl.net.in

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