Thymine, 99%+

Name: Thymine, 99%+
Brand: Vaqora Chemicals
SKU: VQ-012001

About Thymine, 99%+

Thymine (CAS 65-71-4) is a diazine derivative offered by Vaqora Chemicals (Biochemistry grade) with a typical assay of ≥99%. With the molecular formula C5H6N2O2, it has a molar mass of 126.11 g/mol. Its systematic (IUPAC) name is 5-methyl-1H-pyrimidine-2,4-dione. Alternative names: 2,4-Dihydroxy-5-methylpyrimidine and 5-Methyluracil.

It is supplied as a white to off-white powder. Literature values give a melting point of ~320 °C (dec.). Keep the container tightly sealed and store it in a cool, dry area. Under GHS it is labelled “Warning”, so handle it with suitable PPE and consult the SDS.

It is commonly used for molecular biology workflows, paints, coatings and inks and nanotechnology research. Our customers for this product work in pharmaceutical manufacturing and academic and industrial research.

We offer Thymine in 10 g, 25 g, 100 g and 1 kg packs with a batch-specific COA, and ship to customers worldwide.

Typical applications

Molecular biology workflows
Paints, coatings & inks
Nanotechnology research

Industries

Specifications & identifiers

Chemical identifiers
Product name	Thymine, 99%+
Catalogue No.	VQ-012001
CAS Number	65-71-4
IUPAC name	5-methyl-1H-pyrimidine-2,4-dione
Molecular formula	C₅H₆N₂O₂
Molecular weight	126.11 g/mol
Exact mass	126.0429
Grade	Biochemistry
Purity / assay	≥99%
HSN code	29349900
InChIKey	RWQNBRDOKXIBIV-UHFFFAOYSA-N
SMILES	CC1=CNC(=O)NC1=O
PubChem CID	1135

Physical properties
Physical form	Powder
Appearance	White to off-white powder
Melting point	~320 °C (dec.)
LogP (XLogP3)	-0.6
H-bond donors / acceptors	2 / 2
TPSA	58.2 Å²
Synonyms	2,4-Dihydroxy-5-methylpyrimidine, 5-Methyluracil, Thymin, Thymine anhydrate, 5-Methyl-1,2,3,4-tetrahydropyrimidine-2,4-dione, 2,4(1H,3H)-Pyrimidinedione, 5-methyl-, Thymin (purine base), 5-methyl-2,4(1H,3H)-pyrimidinedione, 5 Methyluracil, 5-methylpyrimidine-2,4(1H,3H)-dione, 5-Methyl Uracil, Thymine-t

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H319Causes serious eye irritation

Precautionary statements: P264 + P265, P280, P305 + P351 + P338, P337 + P317

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

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

Other grades of CAS 65-71-4

Cell Culture

Thymine, cell culture tested

CAS: 65-71-4
Formula: C₅H₆N₂O₂
MW: 126.11 g/mol

VQ-046366

Frequently asked questions

What is the CAS number of Thymine, 99%+?

The CAS Registry Number of Thymine, 99%+ is 65-71-4. It is also known as 2,4-Dihydroxy-5-methylpyrimidine, 5-Methyluracil, Thymin.

What is the molecular formula and molecular weight of Thymine, 99%+?

Thymine, 99%+ has the molecular formula C5H6N2O2 and a molecular weight of 126.11 g/mol. Its IUPAC name is 5-methyl-1H-pyrimidine-2,4-dione.

Which grade and pack sizes of Thymine, 99%+ can I order?

We supply Thymine, 99%+ in Biochemistry (≥99%) grade, in 10 g, 25 g, 100 g, 1 kg, 4 x 25 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Thymine, 99%+?

Yes. Every lot of Thymine, 99%+ 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 Thymine, 99%+ be shipped internationally?

Yes. Thymine, 99%+ is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.