Benzo[a]pyrene (CAS 50-32-8) — formula C20H12, molecular weight 252.3; category organic chemicals.
Benzo[a]pyrene (CAS 50-32-8) is a chemical raw material in the organic chemicals category. Its molecular formula C20H12 comprises 20 C, 12 H atoms. Its molecular weight is about 252.3. Reported physicochemical data: melting point around 349.7 to 351.5 °F (NTP, 1992), boiling point around 887 °F at 760 mmHg (NTP, 1992), LogP about 6. 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 | 50-32-8 |
|---|---|
| Molecular Formula | C20H12 |
| Molecular Weight | 252.3 |
| Melting Point | 349.7 to 351.5 °F (NTP, 1992) |
| Boiling Point | 887 °F at 760 mmHg (NTP, 1992) |
| LogP | 6 |
| Applications | research chemical, Not commercially used in the US, Formed during incomplete combustion of organic compounds, Highest levels in aluminum production (up to 100 ug/m3), then roofing and paving (10-20 ug/m3), then lowest exposures: coal liquefaction |
| Category | Organic Chemicals |
Documented applications: research chemical, Not commercially used in the US, Formed during incomplete combustion of organic compounds, Highest levels in aluminum production (up to 100 ug/m3), then roofing and paving (10-20 ug/m3), then lowest exposures: coal liquefaction.
Benzo[a]pyrene is a carbon-based organic compound with CAS registry number 50-32-8 and molecular formula C20H12 (molecular weight 252.3), belonging to the organic chemicals segment of chemical raw materials.
CAS number: 50-32-8
Its molecular formula C20H12 comprises 20 C, 12 H atoms.
Also known as: Benzo[a]pyrene · 苯并[a]芘
Category: organic chemicals
The CAS registry number of Benzo[a]pyrene is 50-32-8.
Molecular formula C20H12, molecular weight 252.3.
It is also registered under: Benzo[a]pyrene, 苯并[a]芘.
Recorded applications: research chemical, Not commercially used in the US, Formed during incomplete combustion of organic compounds, Highest levels in aluminum production (up to 100 ug/m3), then roofing and paving (10-20 ug/m3), then lowest exposures: coal liquefaction.
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 Benzo[a]pyrene (CAS 50-32-8), compiled from public chemistry databases.
| CAS Registry Number | 50-32-8 |
|---|---|
| PubChem CID | 2336 |
| Molecular formula | C20H12 |
| IUPAC name | benzo[a]pyrene |
| UNII (FDA) | 3417WMA06D |
| Molecular Weight | 252.3 |
|---|---|
| XLogP3 | 6 |
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 0 |
| Rotatable Bond Count | 0 |
| Exact Mass | 252.093900383 |
| Monoisotopic Mass | 252.093900383 |
| Topological Polar Surface Area | 0 |
| Heavy Atom Count | 20 |
| Boiling Point | 887 °F at 760 mmHg (NTP, 1992) |
|---|---|
| Boiling Point | BP: 310-312 °C at 10 mm Hg |
| Boiling Point | 496 °C |
| Boiling Point | 5612 °F |
| Melting Point | 349.7 to 351.5 °F (NTP, 1992) |
| Melting Point | 179 °C |
| Melting Point | 178.1 °C |
| Melting Point | 3497-3515 °F |
| Melting Point | 181.1 °C |
| Solubility | In water, 1.62X10-3 mg/L at 25 °C |
benzo[a]pyrene; 50-32-8; 3,4-Benzopyrene; benzo[pqr]tetraphene; BENZO(A)PYRENE; 3,4-Benzpyrene; Benzpyrene; benzo[def]chrysene; 6,7-Benzopyrene; 3,4-Benz[a]pyrene; Benz[a]pyrene; 3,4-BP; 3,4-Benzopirene; 3,4-Benzpyren; Benz(a)pyrene; Benzo(d,e,f)chrysene
| Regulatory & Food Contact | CONTAMINANT: Food Contaminant TRS 806-JECFA 37/27 FAS 28-JECFA 37/301 |
|---|
| Reported hazard statements | H317, H340, H350, H400, H410, H360 (94.5%), H373, H315 |
|---|
H317: May cause an allergic skin reaction [Warning Sensitization, Skin]
H340: May cause genetic defects [Danger Germ cell mutagenicity]
Benzo[a]pyrene · CAS 50-32-8 · C20H12. UNII 3417WMA06D. Boiling Point: 887 °F at 760 mmHg (NTP, 1992); Boiling Point: BP: 310-312 °C at 10 mm Hg; Boiling Point: 496 °C.
Source: PubChem / Wikidata; the batch COA governs where values differ.
Supplier: Jinan Shenghe Chemical Co., Ltd.
中文页面: 苯并[a]芘