Tryptophan - Impurity G

Name: Tryptophan - Impurity G
Brand: Zemixal
SKU: ZX-027449

Reference StandardAvailable on request

Order Tryptophan - Impurity G (CAS 21704-80-3) online at Zemixal: C11H12N2O3, COA and SDS with every lot, worldwide shipping.

Pack sizes

Tryptophan - Impurity G chemical structure

CAS number21704-80-3

FormulaC₁₁H₁₂N₂O₃

Molar mass220.22 g/mol

Physical formSolid

HS code38229090

InChIKeyVAUYGGXCASQWHK-QMMMGPOBSA-N

IUPAC name(2S)-2-amino-3-(2-hydroxy-1H-indol-3-yl)propanoic acid

About Tryptophan - Impurity G

Analytical teams working on Tryptophan use Tryptophan - Impurity G as a qualified comparison standard. For your records (Reference Standard), the material is defined by CAS 21704-80-3, formula C11H12N2O3 and molar mass 220.22 g/mol. It is handled as a solid.

Common uses in the lab and plant

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

Handling and storage

Hazard communication follows GHS (Warning: H302, H315, H319 and H335). Our SDS lists exposure controls and first-aid measures.

Order it in 10 mg, 25 mg, 50 mg and 100 mg packs or ask for a bulk quotation. Every shipment includes a certificate of analysis with characterisation data. Add it to your quote list and our team replies with price, lead time and shipping options within one business day.

Reference standards for Tryptophan

See every impurity, metabolite and related compound we list for this API.

Tryptophan standards

Typical uses

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

Applications

Pharmaceutical Manufacturing and QC Research Labs and Universities

Specifications and identifiers

Specifications of Tryptophan - Impurity G
Product name	Tryptophan - Impurity G
Catalogue number	ZX-027449
CAS number	21704-80-3
IUPAC name	(2S)-2-amino-3-(2-hydroxy-1H-indol-3-yl)propanoic acid
Molecular formula	C₁₁H₁₂N₂O₃
Molar mass	220.22 g/mol
Exact mass	220.0848
Grade	Reference Standard
Physical form	Solid
XLogP3	-1.3
H-bond donors / acceptors	4 / 4
Topological polar surface area	99.3 Å²
HS code	38229090
InChIKey	VAUYGGXCASQWHK-QMMMGPOBSA-N
SMILES	C1=CC=C2C(=C1)C(=C(N2)O)C[C@@H](C(=O)O)N
PubChem CID	17754204
Synonyms	Tryptophan EP Impurity G, 2-Hydroxy-Tryptophan, 2-hydroxytryptophan, (S)-2-Amino-3-(2-hydroxy-1H-indol-3-yl)propanoic acid, L-Tryptophan, 2-hydroxy-, 2-amino-3-(2-hydroxy-1H-indol-3-yl)propanoic acid, 2-Hydroxy-L-tryptophan (H-L-Trp(2-OH)-OH)

Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.

Safety and GHS hazards

Irritant or harmful

Signal word Warning

H302Harmful if swallowed
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation

Precautionary statements P261, P264, P264 + P265, P270, P271, P280, P301 + P317, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, P330, P332 + P317, P337 + P317, P362 + P364, P403 + P233, P405, P501

Classification summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.

Pack sizes

Pack sizes of Tryptophan - Impurity G
10 mg	Quoted on request
25 mg	Quoted on request
50 mg	Quoted on request
100 mg	Quoted on request

Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.

Questions about Tryptophan - Impurity G

Which CAS number identifies Tryptophan - Impurity G?

Tryptophan - Impurity G is registered under CAS 21704-80-3. You may also see it listed as Tryptophan EP Impurity G, 2-Hydroxy-Tryptophan, 2-hydroxytryptophan. Our catalogue number for this item is ZX-027449.

What are the formula and molar mass of Tryptophan - Impurity G?

For Tryptophan - Impurity G, its formula is C11H12N2O3 and its molar mass is 220.22 g/mol. The systematic (IUPAC) name is (2S)-2-amino-3-(2-hydroxy-1H-indol-3-yl)propanoic acid. InChIKey VAUYGGXCASQWHK-QMMMGPOBSA-N lets you match it in any structure database.

How is Tryptophan - Impurity G used in pharmaceutical QC?

Tryptophan - Impurity G is a characterised reference material linked to Tryptophan. Laboratories use it to identify and quantify this impurity during method development and validation, stability work, batch release testing and regulatory submissions.

What grade and pack sizes are available for Tryptophan - Impurity G?

This listing is Reference Standard grade. Standard packs are 10 mg, 25 mg, 50 mg, 100 mg. Larger quantities and custom packing can be quoted on request.

Which documents come with Tryptophan - Impurity G?

Each lot ships with a batch certificate of analysis and a 16-section GHS safety data sheet. A typical COA or specification sheet can be shared with the quotation before you order.

Can Zemixal ship Tryptophan - Impurity G to my country?

Yes. Because Tryptophan - Impurity G is classed as hazardous, it travels in UN-approved packaging as dangerous goods under IATA or IMDG rules, with the export paperwork your broker needs.

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