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aspartic acid

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Origin: China

Cas No: 617-45-8

Specification: 99%min

Min order Quantity: 1 /kg

Supply Ability: 50 mt/month

Lead time: 7 days for OEM, 3 days for ready goods

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Products Specification
Product Description

Quick Details
CAS No.:
617-45-8
Other Names:
DL-ASPARTIC ACID
MF:
C4H7NO4
EINECS No.:
210-513-3
Place of Origin:
China, Hebei,China
Type:
Vitamins, Amino Acids and Coenzymes, Pharmaceutical Intermediates
Grade Standard:
Medicine Grade
Brand Name:
guanlang
Model Number:
/
Purity:
99
Product Name:
DL-ASPARTIC ACID
CAS NO,:
617-45-8
Package:
25kg/bag/drum
Brand name:
guanlang
Appearance:
white Powder
Other name:
DL-ASPARTIC ACID
Packing:
25 kg bag
Packaging&Delivery
Packaging Details
drum or bag
Port
tianjin or qingdao
Lead Time:
Quantity(Kilograms) 1 - 1 2 - 200000 >200000
Est. Time(days) 1 3 To be negotiated

Property

CAS No.: 617-45-8 Formula: C4H7NO4 Molecular Weight: 133.10300

Description

Aspartic acid (abbreviated as Asp or D; encoded by the codons [GAU and GAC]), also known as aspartate, is an α-amino acid that is used in the biosynthesis of proteins. It contains an α-amino group (which is in the protonated −NH+ 3 form under biological conditions), an α-carboxylic acid group (which is in the deprotonated −COO− form under biological conditions), and a side chain CH2COOH. Under physiological conditions in proteins the sidechain usually occurs as the negatively charged aspartate form, −COO−. It is semi-essential in humans, meaning the body can synthesize it from oxaloacetate.
In proteins aspartate sidechains are often hydrogen bonded, often as asx turns or asx motifs, which often occur at the N-termini of alpha helices.
Asp's L-isomer is one of the 23 proteinogenic amino acids, i.e., the building blocks of proteins. Asp (and glutamic acid) is classified as acidic, with a pKa of 3.9, however in a peptide this is highly dependent on the local environment (as with all amino acids), and could be as high as 14. Asp is pervasive in biosynthesis.
L-aspartic acid is one of the two main ingredients of the artificial sweetener aspartame, along with L-phenylalanine.

Basic Info

Chemical Name	aspartic acid
Synonyms	DL-Asparagic acid; Aspartic acid; Aminobutanedioic acid;
CAS No.	617-45-8
Molecular Formula	C4H7NO4
Molecular Weight	133.10300
PSA	100.62000
LogP	-0.42670

Properties

Appearance & Physical State	white powder
Density	1.514 g/cm3
Boiling Point	264.1ºC at 760 mmHg
Melting Point	300ºC
Stability	Stable under normal temperatures and pressures.
Storage Condition	Store at RT.

Safety Info

Safety Statements	S22-S24/25
HS Code	29224995
Risk Statements	R20/21/22

Synthesis Route

L-asparagine+Water→maleamic acid+aspartic acid
3-cyano-L-alanine→asparagine+aspartic acid
N-[2-[(2-Amino-2-oxoethyl)amino]-2-carboxyethyl]-L-aspartic acid→Ammonia+Pyruvic acid

Precursor

ethyl 1-cyclohexanecarbonyl-4-oxo-2-azetidinecarboxylate
oxaloacetic acid
(2S)-2-Amino-1,1,2-ethanetricarboxylic acid
calcium 3-carboxyaspartate

Downstream Product

HYDANTOIN-5-ACETIC ACID
FMOC-D-ASP(OBZL)-OH
oxaloacetic acid
Phenylthiohydantoin-aspartic Acid

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