Dimelic acid
Pimelic acid
CAS: 111-16-0
Molecular Formula: C7H12O4
Dimelic acid - Names and Identifiers
| Name | Pimelic acid |
| Synonyms | Pimelate NSC-30112 PEMILIC ACID Pimelic acid Dimelic acid heptanedioate Heptanedioic acid (Heptanedioic acid)dianion 1,5-Pentanedicarboxylic acid Pimelic acid, synthesis grade Pentane-1,5-dicarboxylic acid Pimelic acid, Heptanedioic acid Heptanedioic-2,2,6,6-d4 acid (Pimelic acid) |
| CAS | 111-16-0 |
| EINECS | 203-840-8 |
| InChI | InChI=1/C7H12O4/c8-6(9)4-2-1-3-5-7(10)11/h1-5H2,(H,8,9)(H,10,11)/p-2 |
| InChIKey | WLJVNTCWHIRURA-UHFFFAOYSA-N |
Dimelic acid - Physico-chemical Properties
| Molecular Formula | C7H12O4 |
| Molar Mass | 160.17 |
| Density | 1,329 g/cm3 |
| Melting Point | 103-105°C(lit.) |
| Boling Point | 212°C10mm Hg(lit.) |
| Flash Point | 212°C/10mm |
| Water Solubility | 25 g/L (13 ºC) |
| Solubility | Soluble in water, miscible with alcohol and ether, insoluble in cold benzene · |
| Vapor Presure | 5.92E-06mmHg at 25°C |
| Appearance | White crystal |
| Color | White to slightly beige |
| Merck | 14,7431 |
| BRN | 1210024 |
| pKa | 4.71(at 25℃) |
| PH | 3.77(1 mM solution);3.25(10 mM solution);2.74(100 mM solution) |
| Storage Condition | Store below +30°C. |
| Stability | Stable. Incompatible with oxidizing agents, bases. Combustible. |
| Refractive Index | 1.4352 (estimate) |
| MDL | MFCD00004425 |
| Physical and Chemical Properties | Trait: white monoclinic crystal. melting point 104~105 ℃ boiling point 212 ℃ solubility: soluble in water, miscible with alcohol and ether, insoluble in cold benzene. |
| Use | Generally used for biochemical research, but also for the preparation of polymers, but also as a raw material for plasticizers |
Dimelic acid - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | 36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 - Wear suitable protective clothing. |
| WGK Germany | 2 |
| RTECS | TK3677000 |
| TSCA | Yes |
| HS Code | 29171990 |
| Hazard Note | Irritant |
| Toxicity | LD50 orally in Rabbit: 7000 mg/kg |
Dimelic acid - Introduction
Can sublimate. It can be converted to cis-crotonic acid in toluene solution. Low toxicity, median lethal dose (rat, oral)
Last Update：2022-10-16 17:12:02
Dimelic acid - Reference Information
| NIST chemical information | Information provided by: webbook.nist.gov (external link) |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| Overview | Pimelic acid (Heptanedioicacid & Pimelicacid), alias busic acid, is a 7-carbon linear saturated dibasic acid. In animals, it is produced by the ω oxidation and β oxidation of fatty acids. In 1884, ricinic acid (hydroxylated animal oleic acid) was produced by GanttnerFetal from castor oil. Isolated from bovine urine in 1937, M.Müller has been confirmed to be an essential component for the growth of some strains of Diphtheria. |
| Application | Pimelic acid is generally used for biochemical research, is also used to prepare polymers, and can also be used as a raw material for plasticizers. |
| Use | Generally used for biochemical research, also used for preparing polymers, and can also be used as a raw material for plasticizers Biochemical research. Organic synthesis. |
| production method | put sodium metal into isoamyl alcohol at 100 ℃, continue heating to make vigorous reflux, and drop salicylic acid dissolved in isoamyl alcohol solution. After the reflux reaction is over, cool to 100 ℃, add hot water under stirring, stand and separate the water layer for steam distillation, remove isoamyl alcohol, and collect the distillate to a certain amount. The material in the distillation bottle is cooled, concentrated hydrochloric acid is added, and then steam distillation is carried out to remove salicylic acid. Then concentrate the residue to precipitate sodium chloride, and cool the mixture of pimelic acid and sodium chloride. The mixture is extracted with benzene, and pimelic acid is concentrated and crystallized from the extract. Yield 43-50%. |
Last Update：2024-04-09 02:00:06
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