Thymine (CAS 65-71-4) — formula C5H6N2O2, molecular weight 126.11; category pharmaceutical intermediates and APIs.
Thymine (CAS 65-71-4) is a chemical raw material in the pharmaceutical intermediates and APIs category. Its molecular formula C5H6N2O2 comprises 5 C, 6 H, 2 N, 2 O atoms. Its molecular weight is about 126.11. Reported physicochemical data: melting point around 316, LogP about -0.62. As a sourcing and distribution partner we help locate and compare this item across domestic and cross-border channels, arranging samples and batch orders with full COA and compliance files.
| CAS Number | 65-71-4 |
|---|---|
| Molecular Formula | C5H6N2O2 |
| Molecular Weight | 126.11 |
| Melting Point | 316 |
| LogP | -0.62 |
| Applications | Component of nucleic acids, biochemical research, 4(1H, 3H)-Pyrimidinedione, 5-methyl-: ACTIVE |
| Category | Pharmaceutical Intermediates & APIs |
Documented applications: Component of nucleic acids, biochemical research, 4(1H, 3H)-Pyrimidinedione, 5-methyl-: ACTIVE.
Thymine is a pharmaceutical intermediate or API compound with CAS registry number 65-71-4 and molecular formula C5H6N2O2 (molecular weight 126.11), belonging to the pharmaceutical intermediates and APIs segment of chemical raw materials.
CAS number: 65-71-4
Its molecular formula C5H6N2O2 comprises 5 C, 6 H, 2 N, 2 O atoms.
Also known as: Thymine · 胸腺嘧啶
Category: pharmaceutical intermediates and APIs
The CAS registry number of Thymine is 65-71-4.
Molecular formula C5H6N2O2, molecular weight 126.11.
It is also registered under: Thymine, 胸腺嘧啶.
Recorded applications: Component of nucleic acids, biochemical research, 4(1H, 3H)-Pyrimidinedione, 5-methyl-: ACTIVE.
Category: Pharmaceutical Intermediates & APIs.
Packaging is agreed per order, from lab-scale packs to bulk, and confirmed with each order rather than fixed on the page. A Certificate of Analysis (COA) ships with every batch and MSDS is available; where the end use carries a regulatory limit (food contact, pharmaceutical or cosmetic), state the standard at enquiry and the grade is set against it.
Independent reference data for Thymine (CAS 65-71-4), compiled from public chemistry databases.
| CAS Registry Number | 65-71-4 |
|---|---|
| PubChem CID | 1135 |
| Molecular formula | C5H6N2O2 |
| IUPAC name | 5-methyl-1H-pyrimidine-2,4-dione |
| UNII (FDA) | QR26YLT7LT |
| Molecular Weight | 126.11 |
|---|---|
| XLogP3 | -0.6 |
| Hydrogen Bond Donor Count | 2 |
| Hydrogen Bond Acceptor Count | 2 |
| Rotatable Bond Count | 0 |
| Exact Mass | 126.042927438 |
| Monoisotopic Mass | 126.042927438 |
| Topological Polar Surface Area | 58.2 |
| Heavy Atom Count | 9 |
| Melting Point | 316 |
|---|---|
| Melting Point | 320 °C |
| Solubility | 3820 |
| Solubility | 3.82 mg/mL |
| Vapor Pressure | 0.00000133 [mmHg] |
| LogP | -0.62 |
| LogP | -0.57 |
| Ionization Efficiency | 1.16 |
| Ionization Efficiency | 2.7 |
| Ionization Efficiency | MeCN (80%) |
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
| GHS notification summary | 57.1% (4 / 7) |
|---|
| GHS notification summary | 57.1% (4 / 7) |
|---|---|
| Reported hazard statements | H319 (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]
Thymine · CAS 65-71-4 · C5H6N2O2. UNII QR26YLT7LT. Melting Point: 316; Melting Point: 320 °C; Solubility: 3820.
Source: PubChem / Wikidata; the batch COA governs where values differ.
Supplier: Jinan Shenghe Chemical Co., Ltd.
中文页面: 胸腺嘧啶