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L-ASPARTIC ACID INTRODUCTION
VIADD CHEMICAL COMPANY IS ONE PROFESSIONAL L-ASPARTIC ACID MANUFACTURER, DISTRIBUTOR AND EXPORTER FROM CHINA, YOU CAN GET ASPARTIC ACID PRICE BY EMAIL: SALES@VIADDCHEM.COM
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.
L-Aspartic acid 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.
L-Aspartic acid can be chemically synthesize from the diethyl sodium phthalimidomalonate. Currently, almost all the aspartic acids are manufactured in China.
Aspartic acid ,together with glutamic acid, classified as an acidic amino acid with a pKa of3.9, however in a peptide the pKa is highly dependent on the local environment.A pKa as high as 14 is not at all uncommon. Aspartate is pervasive inbiosynthesis. As with all amino acids, the presence of acid protons depends onthe residue's local chemical environment and the pH of the solution.
【Basic Information】
【Chemical Name】L-Aspartic Acid
【CAS No.】 56-84-8
【EINECS No.】 200-291-6
【HS Code】2922491090
【Specification】USP, AJI, FCC
【Molecular Formula】C4H7NO4
【Formula Weight】133.1
【Chemical Properties】The product is white crystal or crystalline powder, slightly sour in taste. Soluble in boiling water, slightly soluble in water at 25℃(0.5%), freely soluble in dilute acid and sodium hydroxide solution and insoluble in ethanol and ethyl ether.
【Synonyms】L-Asp-OH;L-Aspartic Acid, Animal-Free;L-ASPARTIC ACID, BIOXTRA, >=99% (HPL;L-ASPARTIC ACID, REAGENT GRADE, >=98;L-Aspartic acidUSP, 98.5-101.5% (Titration: anhydrous basis);(S)-(+)-Aminosuccinic acid (S)-Aminobutanedioic acid (S)-Aminosuccinic Acid H-Asp-OH L-Asparaginic Acid L(+)-Aspartic acid;L-Aspartic acid, Low metals content;ASP
【Applications of L-Aspartic Acid】
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.
【Commercial Information】
【Delivery】Within 15 days of order date
【Payment】T/T, D/P, L/C
【Origin】China
【Brand】VIADD
【Supplier】Shenyang Viadd Chemical Co.,Ltd.
【Price Email】sales@viaddchem.com
【Certificate】ISO,KOSHER,HALAL,GMP, MSDS, Material Data Sheet, Non GMO,Non Allergen
【Deliver Port】Tianjin/Qingdao
【Documents】Sales Contract, Commercial Invice, Packing List, Weight List, COA, , Cetificate of Origin, Healthey Certificate, FORM A, FORM E, Policy of Indusrance, B/L, Loading container photos, packing photos, shipping advice, etc
【Packing】25KG PE bag lined plastic woven bag, 18tons (with pallet) or 20tons (without pallet) in 20’container 900KG plastic woven bag, 18tons (with pallet) in 20’container .
【Shelf Life】2 years
【Storage】It should be stored in a dry and ventilating warehouse, kept away from moisture and heat. Furthermore, it should be stored separately from poisonous substances; unload with care so as to avoid damage to packing.
【Specification of L-Aspartic Acid】
Item |
Specification |
Result |
Description |
Crystalline White Powder |
Complies |
Assay |
98.5%~101.0% |
99.8% |
Specific Rotation [a]D20 |
+24.8° ~ +25.8° |
+25.2° |
pH (5% Solution) |
2.5 ~ 3.5 |
2.9 |
Solution Transmittance |
98% min. |
Complies |
Loss on Drying |
0.2% max. |
0.12% |
Residue on Ignition |
0.1% max. |
0.03% |
Ammonium (NH4) |
0.02% max. |
Complies |
Heavy Metals (as Pb) |
10 ppm max. |
Complies |
Arsenic |
1 ppm max. |
Complies |
Iron (Fe) |
10 ppm max. |
Complies |
Sulfate (SO4) |
200 ppm max. |
Complies |
Chloride |
100 ppm max. |
Less than 50 ppm |
Other Amino Acids |
Up to standard |
Complies |
【Chemical Properties of L-Aspartic Aicd】
Melting point: >300 °C (dec.)(lit.)
Alpha:25 º (c=8, 6N HCl)
Density:1.66
FEMA :3656 | L-ASPARTIC ACID
storage temp.: Store at RT.
Solubility:H2O: 5 mg/mL
Form: powder
Pka: 1.99(at 25℃)
Color: White
PH: 2.5-3.5 (4g/l, H2O, 20℃)
Water Solubility: 5 g/L (25 ºC)
Merck: 14,840
BRN: 1723530
Stability: Stable. Combustible. Incompatible with strong oxidising agents.
CAS DataBase Reference: 56-84-8(CAS DataBase Reference)
NIST Chemistry Reference : Aspartic acid(56-84-8)
EPA Substance Registry System: L-Aspartic acid(56-84-8)
【L-Aspartic acid Preparation Products And Raw materials】
1. Preparation Products: L-Alanine-->DL-Aspartic acid-->(S)-3-(Boc-amino)pyrrolidine-->Aspartame-->L-Asparagine-->N-FMOC-L-aspartic acid 4-t-butyl ester-->Sodium L-aspartate-->D-Alaninamide, L-.alpha.-aspartyl-N-(2,2,4,4-tetramethyl-3-thietanyl)-, hydrate (2:5)-->L-Lysine-L-aspartate-->Magnesium dihydrogen di-L-aspartate-->N-Cbz-L-Aspartic acid 4-benzyl ester-->Calcium L-aspartate
2.Raw materials: Sulfuric acid -->Ammonium hydroxide-->Ammonia-->Activated carbon-->Calcium hydroxide -->Α-PROTEIN-->Fumaric acid-->Maleic acid-->Succinic acid-->Gelatin-->Chloroacetamide-->DL-Aspartic acid-->Pentanedial-->L-ASPARTIC ACID-->AMINOACYLASE