Aspartic Acid - Impurity A (Ammonium Salt)

Name: Aspartic Acid - Impurity A (Ammonium Salt)
Brand: Vaqora Chemicals
SKU: VQ-051025

About Aspartic Acid - Impurity A (Ammonium Salt)

Vaqora Chemicals supplies Aspartic Acid - Impurity A (Ammonium Salt), an impurity of Aspartic acid registered under CAS number 20261-05-6. With the molecular formula C4H12N2O5, it has a molar mass of 168.15 g/mol. Alternative names: Ammonium (R,S)-malate and Ammonium malate.

It is supplied as a solid. Keep the vial tightly closed, protected from light and humidity, at the temperature stated on the Certificate of Analysis. Good laboratory practice and suitable PPE are recommended during handling.

Pharmaceutical QC and development laboratories use this impurity standard of Aspartic acid to develop and validate HPLC methods, to set specification limits and to document impurity profiles in ANDA and DMF submissions. It is used across pharmaceutical manufacturing and academic and industrial research.

Vaqora Chemicals supplies Aspartic Acid - Impurity A (Ammonium Salt) in 10 mg, 25 mg, 50 mg and 100 mg packs, each shipped with a Certificate of Analysis (COA), and exports worldwide.

Typical applications

Analytical method development
Method validation (AMV)
QC release testing
ANDA / DMF filings

Industries

Related to Aspartic acid

View every impurity, metabolite and intermediate we list for Aspartic acid.

Aspartic acid impurities

Specifications & identifiers

Chemical identifiers
Product name	Aspartic Acid - Impurity A (Ammonium Salt)
Catalogue No.	VQ-051025
CAS Number	20261-05-6
IUPAC name	diazanium;2-hydroxybutanedioate
Molecular formula	C₄H₁₂N₂O₅
Molecular weight	168.15 g/mol
Exact mass	168.0746
Grade	Reference Standard
HSN code	38229090
InChIKey	KGECWXXIGSTYSQ-UHFFFAOYSA-N
SMILES	C(C(C(=O)[O-])O)C(=O)[O-].[NH4+].[NH4+]
PubChem CID	13644148

Physical properties
Physical form	Solid
H-bond donors / acceptors	3 / 5
TPSA	102 Å²
Synonyms	Ammonium (R,S)-malate, Ammonium malate, Malic acid, ammonium salt, Butanedioic acid, hydroxy-, diammonium salt, Butanedioic acid, 2-hydroxy-, ammonium salt (1:2), Diammonium 2-hydroxybutanedioate, Ammonium 2-hydroxysuccinate(x:1), Butanedioic acid, 2-hydroxy-, ammonium salt

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of Aspartic Acid - Impurity A (Ammonium Salt)?

The CAS Registry Number of Aspartic Acid - Impurity A (Ammonium Salt) is 20261-05-6. It is also known as Ammonium (R,S)-malate, Ammonium malate, Malic acid, ammonium salt.

What is the molecular formula and molecular weight of Aspartic Acid - Impurity A (Ammonium Salt)?

Aspartic Acid - Impurity A (Ammonium Salt) has the molecular formula C4H12N2O5 and a molecular weight of 168.15 g/mol.

What is Aspartic Acid - Impurity A (Ammonium Salt) used for?

Aspartic Acid - Impurity A (Ammonium Salt) is supplied as a characterised reference material related to Aspartic acid. It is used for analytical method development and validation (AMV), impurity profiling, stability studies and quality control, and in ANDA/DMF regulatory filings.

Which grade and pack sizes of Aspartic Acid - Impurity A (Ammonium Salt) can I order?

We supply Aspartic Acid - Impurity A (Ammonium Salt) in Reference Standard grade, in 10 mg, 25 mg, 50 mg, 100 mg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Aspartic Acid - Impurity A (Ammonium Salt)?

Yes. Every lot of Aspartic Acid - Impurity A (Ammonium Salt) is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Aspartic Acid - Impurity A (Ammonium Salt) be shipped internationally?

Yes. We export Aspartic Acid - Impurity A (Ammonium Salt) worldwide by air and sea freight or express courier, on EXW, FOB, CIF, CFR or DAP Incoterms, with full export documentation.