Benzo(a)pyrene
Also known as: 1,2-Benzpyrene, 1,2-Benzpyrene (VAN), 2,1,3-Benzothiadiazole,4-chlorosulfonyl, 2,1,3-benzothiadiazol-4-sulfonyl chloride, 2,1,3-benzothiadiazole-4-sulfonylchloride, 2,1,3-benzothiadiazole-4-sulphonyl chloride, 3,4-Benz(a)pyrene, 3,4-Benzo(a)pyrene, 3,4-Benzpyrene, 3,4-benzopyrene, 4,5-BENZPYRENE, 4-Chlorosulfonyl-2,1,3-benzothiadiazole, 6,7-Benzopyrene, Benzo(d,e,f)chrysene, Benzo-2,1,3-thiadiazole-4-sulphonyl chloride, Benzo[a]pyren, Benzo[a]pyrene (Ames grade), Benzo[c][1,2,5]thiadiazole-4-sulfonyl chloride, Benzo[pqr]tetraphene, Benzopyrene
Benzo(a)pyrene (CAS 50-32-8) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C20H12 and a molecular weight of 252.309 g/mol. Key properties include a melting point of 177-180°C, a boiling point of 495.0±0.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 228.6±13.7 °C. It is classified under GHS with signal word Danger and hazard statements H317 — May cause an allergic skin reaction, H340 and H350 — May cause cancer. It is listed by 1 supplier, from 3.20 to 1,800.00 CNY. Record last updated Aug 21, 2026.
- CAS No.
- 50-32-8
- Jingsj CID
- J-5537-0
- Molecular Formula
- C20H12
- Molecular Weight
- 252.309 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 8/21/2026
| Supplier | Purity / Pack | Base Price | Unit Price | Origin | |
|---|---|---|---|---|---|
In Stock | 98% 100mg | ¥320.00 | $0.48 /mgBest ¥3.20/mg CNY | CN China MOQ 100mg | |
In Stock | 分析标准品 10mg | ¥500.00 | $7.48 /mg ¥50.00/mg CNY | CN China MOQ 10mg | |
In Stock | 5.25μg/mL，基体：甲醇 2ml | ¥360.00 | $26.94 /ml ¥180.00/ml CNY | CN China MOQ 2ml |
Physicochemical Properties
| Melting Point | 177-180°C |
|---|---|
| Boiling Point | 495.0±0.0 °C at 760 mmHg |
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 228.6±13.7 °C |
| Exact Mass | 252.093903 |
| LogP | 6.40 |
| Vapor Pressure | 0.0±0.6 mmHg at 25°C |
| Refractive Index | 1.887 |
| Stability | Stable. Incompatible with strong oxidizing agents. |
GHS Safety & Compliance
- H317 — May cause an allergic skin reaction
- H340
- H350 — May cause cancer
- H410 — Very toxic to aquatic life with long lasting effects
Activity & Biological Data
| Additional Information | [1]. Saeko Onami, et al. Dosimetry for lung tumorigenesis induced by urethane, 4-(N-methyl-N-nitrosamino)-1-(3-pyridyl)-1-butanone (NNK), and benzo[a]pyrene (B[a]P) in A/JJmsSlc mice. J Toxicol Pathol. 2017 Jul; 30(3): 209–216. [2]. Yeo CD, et al. Roflumilast treatment inhibits lung carcinogenesis in benzo(a)pyrene-induced murine lung cancer model. Eur J Pharmacol. 2017 Oct 5;812:189- |
|---|
Customs & Trade Information
| HS Code | 2902909090 |
|---|---|
| Summary | 2902909090 other aromatic hydrocarbons。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:2.0%。General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of Benzo(a)pyrene?
The CAS number of Benzo(a)pyrene is 50-32-8.
What are the molecular formula and molecular weight of Benzo(a)pyrene?
Benzo(a)pyrene has molecular formula C20H12 and molecular weight 252.309 g/mol.
Which suppliers offer Benzo(a)pyrene?
1 supplier(s) listed; reference unit price ¥3.20–1800.00 /mg.
Is Benzo(a)pyrene hazardous?
Benzo(a)pyrene has GHS signal word Danger and hazard statements H317 — May cause an allergic skin reaction; H340; H350 — May cause cancer.
What are the upstream and downstream products of Benzo(a)pyrene?
For Benzo(a)pyrene, Upstream Products: 9,10-Dihydrobenzo[a]pyren-7(8H)-one, 7,8,9,10-tetrahydrobenzo[a]pyren-7-ol, 1-Pyrenebutyric acid; Downstream Products: 6-Nitrobenzo[a]pyrene.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Benzo(a)pyrene (CAS 50-32-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-5537-0 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.