Toxopyrimidine

Name: Toxopyrimidine
Brand: Zemixal
SKU: ZX-026023

Reference StandardAvailable on request

Order Toxopyrimidine (CAS 73-67-6) online at Zemixal. Request a quote with price, lead time and documents. Catalogue no. ZX-026023.

Pack sizes

CAS number73-67-6

FormulaC₆H₉N₃O

Molar mass139.16 g/mol

Physical formSolid

HS code38229090

InChIKeyVUTBELPREDJDDH-UHFFFAOYSA-N

IUPAC name(4-amino-2-methylpyrimidin-5-yl)methanol

About Toxopyrimidine

Analytical teams working on Thiamine use Toxopyrimidine as a qualified comparison standard. For your records (Reference Standard), the material is defined by CAS 73-67-6, formula C6H9N3O and molar mass 139.16 g/mol. It is handled as a solid.

Typical applications

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

Handling and storage

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

Available as 10 mg, 25 mg, 50 mg and 100 mg. Larger or split packs can be arranged. You receive a certificate of analysis with characterisation data with each order. Request pricing online and we confirm availability, documentation and freight to your country.

Reference standards for Thiamine

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

Thiamine 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 Toxopyrimidine
Product name	Toxopyrimidine
Catalogue number	ZX-026023
CAS number	73-67-6
IUPAC name	(4-amino-2-methylpyrimidin-5-yl)methanol
Molecular formula	C₆H₉N₃O
Molar mass	139.16 g/mol
Exact mass	139.0746
Grade	Reference Standard
Physical form	Solid
XLogP3	-0.1
H-bond donors / acceptors	2 / 4
Topological polar surface area	72 Å²
HS code	38229090
InChIKey	VUTBELPREDJDDH-UHFFFAOYSA-N
SMILES	CC1=NC=C(C(=N1)N)CO
PubChem CID	777
Synonyms	4-Amino-2-methyl-5-pyrimidinemethanol, Thiamine Toxopyrimidine, 4-amino-5-hydroxymethyl-2-methylpyrimidine, Atoxopyrimidine, 2-Methyl-4-amino-5-hydroxymethylpyrimidine, 2-M-4-A-5-Hmp, 4-amino-2-methyl-5-hydroxymethylpyrimidine, 4-A-2-MEP, (4-Amino-2-methyl-5-pyrimidinyl)methanol, 5-Pyrimidinemethanol, 4-amino-2-methyl-, Oxymethylpyrimidine, Pyramine (VAN)

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 Toxopyrimidine
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 Toxopyrimidine

Which CAS number identifies Toxopyrimidine?

Toxopyrimidine is registered under CAS 73-67-6. You may also see it listed as 4-Amino-2-methyl-5-pyrimidinemethanol, Thiamine Toxopyrimidine, 4-amino-5-hydroxymethyl-2-methylpyrimidine. Our catalogue number for this item is ZX-026023.

What are the formula and molar mass of Toxopyrimidine?

For Toxopyrimidine, its formula is C6H9N3O and its molar mass is 139.16 g/mol. The systematic (IUPAC) name is (4-amino-2-methylpyrimidin-5-yl)methanol. InChIKey VUTBELPREDJDDH-UHFFFAOYSA-N lets you match it in any structure database.

How is Toxopyrimidine used in pharmaceutical QC?

Toxopyrimidine is a characterised reference material linked to Thiamine. 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 Toxopyrimidine?

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 Toxopyrimidine?

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 Toxopyrimidine to my country?

Yes. Because Toxopyrimidine 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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