API Process Intermediates & Related Compounds

L-Selenocysteine

Name: L-Selenocysteine
Brand: Zemixal
SKU: ZX-040780

Available on request

L-Selenocysteine (CAS 10236-58-5) supplier Zemixal. Lab and bulk packs, batch COA, fast global delivery. Catalogue no. ZX-040780.

Pack sizes

CAS number10236-58-5

FormulaC₃H₇NO₂Se

Molar mass168.06 g/mol

Physical formSolid

InChIKeyZKZBPNGNEQAJSX-REOHCLBHSA-N

IUPAC name(2R)-2-amino-3-selanylpropanoic acid

About L-Selenocysteine

L-Selenocysteine is part of the Zemixal API Process Intermediates & Related Compounds range. For your records, the material is defined by CAS 10236-58-5, formula C3H7NO2Se and molar mass 168.06 g/mol. It is handled as a solid.

Typical applications

API route development
Impurity fate & purge studies
Analytical method development

Storage and safety notes

It carries the GHS signal word Warning (H315, H319 and H335), so wear gloves and eye protection and work with good ventilation.

Available as 10 mg, 25 mg, 50 mg and 100 mg. Larger or split packs can be arranged. You receive a batch certificate of analysis and a 16-section SDS with each order. Send an enquiry through the quote panel and you get a formal offer with Incoterms and delivery time.

Reference standards for N methylpyrrolidone

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

N methylpyrrolidone standards

Typical uses

API route development
Impurity fate & purge studies
Analytical method development

Applications

Pharmaceutical Manufacturing and QC Research Labs and Universities

Specifications and identifiers

Specifications of L-Selenocysteine
Product name	L-Selenocysteine
Catalogue number	ZX-040780
CAS number	10236-58-5
IUPAC name	(2R)-2-amino-3-selanylpropanoic acid
Molecular formula	C₃H₇NO₂Se
Molar mass	168.06 g/mol
Exact mass	168.9642
Physical form	Solid
H-bond donors / acceptors	2 / 3
Topological polar surface area	63.3 Å²
InChIKey	ZKZBPNGNEQAJSX-REOHCLBHSA-N
SMILES	C([C@@H](C(=O)O)N)[SeH]
PubChem CID	25076
Synonyms	3-Selenylalanine, Selenocysteine, DL, 3-Selenoalanine, D,L-selenocysteine, L-Alanine, 3-selenyl-, Selenium cysteine, Selenocysteine, (R)-2-Amino-3-hydroselenopropanoic acid, Alanine, 3-selenyl-, Se-cysteine

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

H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation

Precautionary statements P261, P264, P264 + P265, P271, P280, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, 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 L-Selenocysteine
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 L-Selenocysteine

Which CAS number identifies L-Selenocysteine?

L-Selenocysteine is registered under CAS 10236-58-5. You may also see it listed as 3-Selenylalanine, Selenocysteine, DL, 3-Selenoalanine. Our catalogue number for this item is ZX-040780.

What are the formula and molar mass of L-Selenocysteine?

For L-Selenocysteine, its formula is C3H7NO2Se and its molar mass is 168.06 g/mol. The systematic (IUPAC) name is (2R)-2-amino-3-selanylpropanoic acid. InChIKey ZKZBPNGNEQAJSX-REOHCLBHSA-N lets you match it in any structure database.

How is L-Selenocysteine used in pharmaceutical QC?

L-Selenocysteine is a characterised reference material linked to N methylpyrrolidone. 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 L-Selenocysteine?

The grade and assay are confirmed on the quotation and the batch COA. 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 L-Selenocysteine?

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 L-Selenocysteine to my country?

Yes. Because L-Selenocysteine 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.

More N methylpyrrolidone standards

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