1,3-Dibromopropane
1,3-Dibromopropane
CAS: 109-64-8
Molecular Formula: C3H6Br2
1,3-Dibromopropane - Names and Identifiers
| Name | 1,3-Dibromopropane |
| Synonyms | CH2BrCH2CH2Br ,-Dibromopropane 1,3-Dibrompropan 1,3-Dibromoproane ,'-Dibromopropane 1,3-dibromo-propan 1,3-Dibromopropane Dibromo-1,3 propane Trimethylene bromide 1,3-Propylenebromide Trimethylene dibromide omega,omega'-dibromopropane dibutyl benzene-1,2-dicarboxylate |
| CAS | 109-64-8 |
| EINECS | 203-690-3 |
| InChI | InChI=1/C3H6Br2/c1-3-5-11-19-15(17)13-9-7-8-10-14(13)16(18)20-12-6-4-2/h7-10H,3-6,11-12H2,1-2H3 |
| InChIKey | VEFLKXRACNJHOV-UHFFFAOYSA-N |
1,3-Dibromopropane - Physico-chemical Properties
| Molecular Formula | C3H6Br2 |
| Molar Mass | 201.89 |
| Density | 1.989 g/mL at 25 °C (lit.) |
| Melting Point | -34 °C (lit.) |
| Boling Point | 167 °C (lit.) |
| Flash Point | 54 °C |
| Water Solubility | 1.7 g/L (30 ºC) |
| Solubility | 1.68g/l |
| Vapor Presure | 2.6 hPa (20 °C) |
| Vapor Density | 7 (vs air) |
| Appearance | Liquid |
| Color | Clear colorless to yellow |
| Merck | 14,9713 |
| BRN | 635662 |
| Storage Condition | Store below +30°C. |
| Stability | Stable. Incompatible with strong oxidizing agents, strong bases. Flammable. |
| Refractive Index | n20/D 1.524(lit.) |
| Physical and Chemical Properties | Density 1.989 melting point -34°C boiling point 167°C refractive index 1.5215-1.5235 flash point 54°C water-soluble 1.7g/L (30°C) |
| Use | Used as a pharmaceutical Intermediate |
1,3-Dibromopropane - Risk and Safety
| Risk Codes | R10 - Flammable R22 - Harmful if swallowed R38 - Irritating to the skin R51/53 - Toxic 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 | S16 - Keep away from sources of ignition. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 - Wear suitable protective clothing. S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. S24/25 - Avoid contact with skin and eyes. |
| UN IDs | UN 1993 3/PG 3 |
| WGK Germany | 2 |
| RTECS | TX8575000 |
| TSCA | Yes |
| HS Code | 29033036 |
| Hazard Class | 3 |
| Packing Group | III |
| Toxicity | LD50 orally in Rabbit: 315 mg/kg |
1,3-Dibromopropane - Upstream Downstream Industry
| Downstream Products | Sibutramine |
1,3-Dibromopropane - Reference Information
| NIST chemical information | information provided by: webbook.nist.gov (external link) |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Use | as an intermediate in organic synthesis. use as a pharmaceutical intermediate use in the pharmaceutical industry and production of cyclopropane Organic Synthesis (Synthesis of cyclopropane). |
| production method | from propylene glycol and hydrogen bromide reaction. First, add concentrated sulfuric acid and 1, 3-propanediol to the hydrogen bromide, then slowly drip the concentrated sulfuric acid, reflux on the sand bath for 7H, then boil out the crude product, and wash the crude product once with water, wash with 10% sodium thiosulfate solution for 2-3 times, 10% sodium carbonate for 2 times, remove the aqueous layer, dry with anhydrous calcium chloride. Fractionation by compression is often performed, and the 159-168 °c fraction is collected to obtain the finished product. |
| category | toxic substances |
| toxicity grade | high toxicity |
| Acute toxicity | intraperitoneal-mouse LD50: 473 mg/kg |
| flammability hazard characteristics | |
| storage and transportation characteristics | The warehouse is ventilated and dried at low temperature; Separate from food, oxidant and acid |
| fire extinguishing agent | foam, dry powder, 1211 fire extinguishing agent |
| Occupational Standard | SEL 5 mg/m3 |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-10 22:29:15
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Downstream Products for 1,3-Dibromopropane