Tryptophan EP Impurity K

Name: Tryptophan EP Impurity K
Brand: Vaqora Chemicals
SKU: VQ-028560

About Tryptophan EP Impurity K

Vaqora Chemicals supplies Tryptophan EP Impurity K, a pharmacopeial impurity of Tryptophan registered under CAS number 149724-31-2. The compound has the formula C20H19N3O2, corresponding to a molecular weight of 333.4 g/mol. Its systematic (IUPAC) name is (2S)-2-amino-3-[2-(1H-indol-3-ylmethyl)-1H-indol-3-yl]propanoic acid. Alternative names: Tryptophan EP Impurity K (Free Base) and 2-(3-Indolylmethyl)-L-tryptophan.

The product is provided as a solid. Store the standard in its sealed vial, protected from light and moisture, and follow the storage condition printed on the COA. Handle it with standard laboratory precautions and appropriate personal protective equipment.

Pharmaceutical QC and development laboratories use this impurity standard of Tryptophan to develop and validate HPLC methods, to set specification limits and to document impurity profiles in ANDA and DMF submissions. Buyers come mainly from pharmaceutical manufacturing and academic and industrial research.

Vaqora Chemicals supplies Tryptophan EP Impurity K in 10 mg, 25 mg, 50 mg and 100 mg packs, each shipped with a Certificate of Analysis (COA), and exports worldwide.

Typical applications

Pharmacopeial method verification
Impurity profiling
QC release testing
ANDA / DMF filings

Industries

Related to Tryptophan

View every impurity, metabolite and intermediate we list for Tryptophan.

Tryptophan impurities

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Tryptophan EP Impurity K
Catalogue No.	VQ-028560
CAS Number	149724-31-2
IUPAC name	(2S)-2-amino-3-[2-(1H-indol-3-ylmethyl)-1H-indol-3-yl]propanoic acid
Molecular formula	C₂₀H₁₉N₃O₂
Molecular weight	333.4 g/mol
Exact mass	333.1477
Grade	Reference Standard
HSN code	38229090
InChIKey	RNZFOWZVRUMXDQ-INIZCTEOSA-N
SMILES	C1=CC=C2C(=C1)C(=CN2)CC3=C(C4=CC=CC=C4N3)C[C@@H](C(=O)O)N
PubChem CID	24802222

Physical properties
Physical form	Solid
LogP (XLogP3)	1
H-bond donors / acceptors	4 / 3
TPSA	94.9 Å²
Synonyms	Tryptophan EP Impurity K (Free Base), 2-(3-Indolylmethyl)-L-tryptophan, (2S)-2-Amino-3-(2-(1H-indol-3-ylmethyl)-1H-indol-3-yl)propanoic acid, Tryptophan impurity K, L-Tryptophan, 2-(1H-indol-3-ylmethyl)-, (S)-3-(2-((1H-Indol-3-yl)methyl)-1H-indol-3-yl)-2-aminopropanoic acid, 2-(1H-Indol-3-ylmethyl)-L-tryptophan, (2S)-2-amino-3-{2-[(1H-indol-3-yl)methyl]-1H-indol-3-yl}propanoic acid, (S)-3-(2-((1H-Indol-3-yl)methyl)-1H-indol-3-yl)-2-aminopropanoicacid

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 Tryptophan EP Impurity K?

The CAS Registry Number of Tryptophan EP Impurity K is 149724-31-2. It is also known as Tryptophan EP Impurity K (Free Base), 2-(3-Indolylmethyl)-L-tryptophan, (2S)-2-Amino-3-(2-(1H-indol-3-ylmethyl)-1H-indol-3-yl)propanoic acid.

What is the molecular formula and molecular weight of Tryptophan EP Impurity K?

Tryptophan EP Impurity K has the molecular formula C20H19N3O2 and a molecular weight of 333.4 g/mol. Its IUPAC name is (2S)-2-amino-3-[2-(1H-indol-3-ylmethyl)-1H-indol-3-yl]propanoic acid.

What is Tryptophan EP Impurity K used for?

Tryptophan EP Impurity K is supplied as a characterised reference material related to Tryptophan. 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 Tryptophan EP Impurity K can I order?

We supply Tryptophan EP Impurity K 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 Tryptophan EP Impurity K?

Yes. Every lot of Tryptophan EP Impurity K 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 Tryptophan EP Impurity K be shipped internationally?

Yes. We export Tryptophan EP Impurity K worldwide by air and sea freight or express courier, on EXW, FOB, CIF, CFR or DAP Incoterms, with full export documentation.