3,4-BP
Benzo[a]pyrene
CAS: 50-32-8
Molecular Formula: C20H12
3,4-BP - Names and Identifiers
| Name | Benzo[a]pyrene |
| Synonyms | BP B[A]P 3,4-BP Benzpyrene Benzopyrene 3,4-Benzpyren Benzo[a]pyrene Benzo(a)pyrene 3,4-Benzpyrene 3,4-Benzopirene 3,4-Benzopyrene 6,7-Benzopyrene 3,4-benzylpyrene 3,4-Benz[a]pyrene 3,4-benz[a]pyrene 3,4-benz(a)pyrene benzo[pqr]tetraphene Benzo[d,e,f]chrysene Rcra waste number U022 |
| CAS | 50-32-8 |
| EINECS | 200-028-5 |
| InChI | InChI=1/C20H12/c1-2-7-17-15(4-1)12-16-9-8-13-5-3-6-14-10-11-18(17)20(16)19(13)14/h1-12H |
| InChIKey | FMMWHPNWAFZXNH-UHFFFAOYSA-N |
3,4-BP - Physico-chemical Properties
| Molecular Formula | C20H12 |
| Molar Mass | 252.31 |
| Density | 1.1549 (estimate) |
| Melting Point | 177-180°C |
| Boling Point | 495°C |
| Flash Point | 495°C |
| Water Solubility | Soluble in benzene, toluene, and xylene. Sparingly soluble in alcohol, methanol. Insoluble in water |
| Solubility | Insoluble in water, slightly soluble in ethanol, methanol, soluble in benzene, toluene, xylene, chloroform, ether, acetone, etc. |
| Vapor Presure | 2.4 at 25 °C (McVeety and Hites, 1988) |
| Appearance | Yellow crystal or powder |
| Color | Pale yellow/green/orange |
| Exposure Limit | OSHA: TWA 0.2 mg/m3 |
| Merck | 14,1103 |
| BRN | 1911333 |
| pKa | >15 (Christensen et al., 1975) |
| Storage Condition | 2-8°C |
| Stability | Stable. Incompatible with strong oxidizing agents. |
| Refractive Index | 1.8530 (estimate) |
| MDL | MFCD00003602 |
| In vivo study | Statistically significant decrease is observed at 7 weeks in females receiving 1.0 mg Benzo[a]pyrene (B[a]P) compare with the vehicle group. As lung tumorigenesis induced by Benzo[a]pyrene is dose dependent in female A/J mice. The incidence of hyperplasia values in females treating with 0.25, 0.50, and 1.0 mg Benzo[a]pyrene are significantly higher than in the vehicle-treated group. The incidence of adenoma in females receiving 1.0 mg Benzo[a]pyrene is significantly higher than in the vehicle group. The multiplicity of hyperplasia in females receiving 0.50 or 1.0 mg Benzo[a]pyrene is significantly higher than in the vehicle group. The multiplicity of adenoma in the group treated with 1.0 mg is also significantly higher than in the vehicle group. The incidences of hyperplasia and adenoma in female A/J mice are significantly increased by Benzo[a]pyrene in a dose-dependent manner. Benzo[a]pyrene induces an average of 9.38±1.75 tumors with an average tumor load of 19.53±3.81 mm 3 (P<0.05 compare to control). Benzo[a]pyrene administration significantly (P<0.05) decreases cAMP levels in tumors with adjacent lung tissues. The expression level of PDE4D gene is also increased by Benzo[a]pyrene administration. |
3,4-BP - Risk and Safety
| Risk Codes | R45 - May cause cancer R46 - May cause heritable genetic damage R50/53 - Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. R60 - May impair fertility R61 - May cause harm to the unborn child R43 - May cause sensitization by skin contact R67 - Vapors may cause drowsiness and dizziness R66 - Repeated exposure may cause skin dryness or cracking R36 - Irritating to the eyes R11 - Highly Flammable R65 - Harmful: May cause lung damage if swallowed R38 - Irritating to the skin R52/53 - Harmful to aquatic organisms, may cause long-term adverse effects in the aquatic environment. R36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S53 - Avoid exposure - obtain special instructions before use. S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. S60 - This material and its container must be disposed of as hazardous waste. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S62 - If swallowed, do not induce vomitting; seek medical advice immediately and show this container or label. S16 - Keep away from sources of ignition. |
| UN IDs | 2811 |
| WGK Germany | 3 |
| RTECS | DJ3675000 |
| TSCA | Yes |
| HS Code | 29029090 |
| Hazard Class | 6.1 |
| Packing Group | III |
| Toxicity | LD50 for mice (intraperitoneal) 232 mg/kg (Salamone, 1981). |
3,4-BP - Reference
| Reference Show more | 1. Bi kehai, Zhang Yuying, Sun Yufeng, Zhang Yuqing, Yang Qing, Yu Changhai. Formation and regulation of benzo (a) pyrene in fried meat products [J]. Food industry, 2020,41(12):201-205. |
3,4-BP - Introduction
This product has no production and use value in industry, and is generally only used as a by-product formed in the production process and discharged with exhaust gas.
Last Update：2022-10-16 17:25:32
3,4-BP - Reference Information
| Henry's Law Constant | 7.35 at 25 °C (thermodynamic method-GC/UV spectrophotometry, Altschuh et al., 1999)(x 10-10 mmHg at 25 °C): |
| (IARC) carcinogen classification | 1 (Vol. Sup 7, 92, 100F) 2012 |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| introduction | benzopyrene (Benzopyrene), which is a polycyclic aromatic hydrocarbon compound formed by combining a benzene ring and a pyrene molecule, is a common highly active indirect carcinogen, and is one of the three strong carcinogens in the world before . According to the national "Edible Vegetable Oil Hygienic Standard", the maximum limit of benzopyrene content in edible oil is 10 μg/kg. Benzo [a] pyrene is a 5-ring polycyclic aromatic hydrocarbon with potential carcinogenic, teratogenic and mutagenic effects. |
| harm | benzo (a) pyrene is recognized as a strong carcinogenic polycyclic aromatic hydrocarbon pollutant in the world. this is because it has a five-ring structure, so it can accumulate in organisms, resulting in aberration of biological chromosomes and disorderly synthesis of DNA, thus threatening human health. Benzo (a) pyrene is widely distributed in the environment. |
| Biological activity | Benzo[a]pyrene shows lung carcinogenicity in animal models, and they are often used in chemoprevention research. |
| category | toxic substances |
| toxicity classification | highly toxic |
| acute toxicity | subcutaneous-rat LD50: 50 mg/kg; Abdominal cavity-mouse LDL0: 500 mg/kg |
| stimulation data | skin-mouse 0.014 mg mild |
| flammability hazard characteristics | combustible; combustion produces stimulating smoke |
| storage and transportation characteristics | ventilation and low temperature drying; separate from warehouse food raw materials |
| fire extinguishing agent | dry powder, foam, sand, carbon dioxide, mist water |
| occupational standard | TWA 0.2 mg/m3 |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-09 02:00:09
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