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Thymine

CAS 65-71-4C5H6N2O2MW 126.11

Thymine (CAS No. 65-71-4) is supplied by Jinan Shenghe Chemical Co., Ltd. with a typical purity of 按批次COA提供(不公开发布). Main applications include Pharmaceutical Intermediates & APIs. Bulk quantities are available with COA; purity and packaging are subject to batch COA and order confirmation.

Specifications

CAS Number65-71-4
Molecular FormulaC5H6N2O2
Molecular Weight126.11
Melting Point316
LogP-0.62
Purity按批次COA提供(不公开发布)
Packaging按订单/批次确认(不公开发布)
ApplicationsPharmaceutical Intermediates & APIs
CategoryPharmaceutical Intermediates & APIs

Where it is used

Pharmaceutical Intermediates & APIs

Packaging & Supply

Packaging按订单/批次确认(不公开发布)
Purity按批次COA提供(不公开发布)
StorageSealed, cool and dry place
Lead TimeIn stock / per order

Documents & Support

COA provided with every batch; MSDS and technical documents available on request. Email us with product name and CAS number for a quote within one business day.

Frequently Asked Questions

What is the CAS number of Thymine?

The CAS number of Thymine is 65-71-4.

What purity and packaging are available?

Typical purity is 按批次COA提供(不公开发布), supplied in 按订单/批次确认(不公开发布), with COA provided.

What are the applications of Thymine?

Main applications include Pharmaceutical Intermediates & APIs.

How do I buy Thymine or get a quote?

Email info@591daili.com or reach us on WhatsApp with the product name, CAS number and required quantity; quotes within one business day. Supplier: Jinan Shenghe Chemical Co., Ltd..

PubChem Public Data

Description

Thymine · CAS 65-71-4 · C5H6N2O2. UNII QR26YLT7LT. Melting Point: 316; Melting Point: 320 °C; Solubility: 3820.

Identification

CAS Registry Number65-71-4
PubChem CID1135
Molecular formulaC5H6N2O2
IUPAC name5-methyl-1H-pyrimidine-2,4-dione
UNII (FDA)QR26YLT7LT

Computed Descriptors

Molecular Weight126.11
XLogP3-0.6
Hydrogen Bond Donor Count2
Hydrogen Bond Acceptor Count2
Rotatable Bond Count0
Exact Mass126.042927438
Monoisotopic Mass126.042927438
Topological Polar Surface Area58.2
Heavy Atom Count9
Formal Charge0

Physical & Chemical Properties

Melting Point316
Melting Point320 °C
Solubility3820
Solubility3.82 mg/mL
Vapor Pressure0.00000133 [mmHg]
LogP-0.62
LogP-0.57
Ionization Efficiency1.16
Ionization Efficiency2.7
Ionization EfficiencyMeCN (80%)

Physical description & handling notes

  • Solid; [Merck Index] White crystalline powder; [Alfa Aesar MSDS]
  • Solid
  • Positive
  • Agilent XCT
  • Electrospray ionization
  • formic acid (5.3nM)

Regulatory Status

GHS notification summary57.1% (4 / 7)

GHS Hazard Classification

GHS notification summary57.1% (4 / 7)
Reported hazard statementsH319 (42.9%)

This chemical does not meet GHS hazard criteria for 57.1% (4 of 7) of all reports.

H319 (42.9%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]

Documented Uses

  • Component of nucleic acids; Used in biochemical research; [Merck Index]
  • 2,4(1H,3H)-Pyrimidinedione, 5-methyl-: ACTIVE
  • Beta Ureidopropionase Deficiency
  • MNGIE (Mitochondrial Neurogastrointestinal Encephalopathy)
  • UMP Synthase Deficiency (Orotic Aciduria)

Synonyms

thymine; 65-71-4; 5-methyluracil; 2,4-Dihydroxy-5-methylpyrimidine; 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-1H-pyrimidine-2,4-dione; 5-methyl-2,4(1H,3H)-pyrimidinedione; DTXSID4052342; QR26YLT7LT; NSC14705; CHEBI:17821; NSC-14705

Frequently Asked Questions

What are the CAS number and molecular formula of Thymine?

CAS 65-71-4; molecular formula C5H6N2O2; molecular weight — g/mol.

What other names is Thymine known by?

thymine, 65-71-4, 5-methyluracil, 2,4-Dihydroxy-5-methylpyrimidine, Thymin, Thymine anhydrate.

Is Thymine classified as hazardous?

57.1% of GHS notifications report no hazard classification (4 of 7).

What are the key physical properties of Thymine?

Melting Point: 316; Melting Point: 320 °C; Solubility: 3820; Solubility: 3.82 mg/mL.

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.

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