Octadecane (CAS 593-45-3) — formula C18H38, molecular weight 254.5; category organic chemicals.
Octadecane (CAS 593-45-3) is a chemical raw material in the organic chemicals category. Its molecular formula C18H38 comprises 18 C, 38 H atoms. Its molecular weight is about 254.5. Reported physicochemical data: melting point around 82.9 °F (NTP, 1992), boiling point around 601 °F at 760 mmHg (NTP, 1992), LogP about 9.3. 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 | 593-45-3 |
|---|---|
| Molecular Formula | C18H38 |
| Molecular Weight | 254.5 |
| Melting Point | 82.9 °F (NTP, 1992) |
| Boiling Point | 601 °F at 760 mmHg (NTP, 1992) |
| LogP | 9.3 |
| Applications | solvent and in organic synthesis, Octadecane is used as a solvent, in organic synthesis, and as a calibration standard, They are used mainly in applications for which isoalkanes are not acceptable for biological reasons, e.g |
| Category | Organic Chemicals |
Documented applications: solvent and in organic synthesis, Octadecane is used as a solvent, in organic synthesis, and as a calibration standard, They are used mainly in applications for which isoalkanes are not acceptable for biological reasons, e.g.
Octadecane is a carbon-based organic compound with CAS registry number 593-45-3 and molecular formula C18H38 (molecular weight 254.5), belonging to the organic chemicals segment of chemical raw materials.
CAS number: 593-45-3
Its molecular formula C18H38 comprises 18 C, 38 H atoms.
Also known as: Octadecane · 十八烷
Category: organic chemicals
The CAS registry number of Octadecane is 593-45-3.
Molecular formula C18H38, molecular weight 254.5.
It is also registered under: Octadecane, 十八烷.
Recorded applications: solvent and in organic synthesis, Octadecane is used as a solvent, in organic synthesis, and as a calibration standard, They are used mainly in applications for which isoalkanes are not acceptable for biological reasons, e.g.
Category: Organic Chemicals.
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 Octadecane (CAS 593-45-3), compiled from public chemistry databases.
| CAS Registry Number | 593-45-3 |
|---|---|
| PubChem CID | 11635 |
| Molecular formula | C18H38 |
| IUPAC name | octadecane |
| UNII (FDA) | N102P6HAIU |
| Molecular Weight | 254.5 |
|---|---|
| XLogP3 | 9.3 |
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 0 |
| Rotatable Bond Count | 15 |
| Exact Mass | 254.297351212 |
| Monoisotopic Mass | 254.297351212 |
| Topological Polar Surface Area | 0 |
| Heavy Atom Count | 18 |
| Boiling Point | 601 °F at 760 mmHg (NTP, 1992) |
|---|---|
| Boiling Point | 316 °C |
| Boiling Point | 316.00 to 317.00 °C. @ 760.00 mm Hg |
| Boiling Point | 316.3 °C @760 [mm Hg] |
| Melting Point | 82.9 °F (NTP, 1992) |
| Melting Point | [CAMEO] 82 °F |
| Melting Point | 28.17 °C |
| Melting Point | 28 °C |
| Flash Point | 212 °F (NTP, 1992) |
| Flash Point | 166 °C (331 °F) - closed cup |
OCTADECANE; n-Octadecane; 593-45-3; N102P6HAIU; DTXSID9047172; NSC-4201; DTXCID7027172; CHEBI:32926; RefChem:6081; octadecane, 14C-labeled cpd; 209-790-3; Octadecan; Octadecane, n-; TS Paraffin TS 8; Octadecane, 99%; NSC 4201
| Regulatory & Food Contact | CIR / INCI: Skin conditioning; Solvent; Emollient |
|---|---|
| GHS notification summary | 9.9% (163 / 1644) |
| GHS notification summary | 9.9% (163 / 1644) |
|---|---|
| Reported hazard statements | H304 (89.7%) |
This chemical does not meet GHS hazard criteria for 9.9% (163 of 1644) of reports.
H304 (89.7%): May be fatal if swallowed and enters airways [Danger Aspiration hazard]
Octadecane · CAS 593-45-3 · C18H38. UNII N102P6HAIU. Boiling Point: 601 °F at 760 mmHg (NTP, 1992); Boiling Point: 316 °C; Boiling Point: 316.00 to 317.00 °C. @ 760.00 mm Hg.
Source: PubChem / Wikidata; the batch COA governs where values differ.
Supplier: Jinan Shenghe Chemical Co., Ltd.
中文页面: 十八烷