3,5-Diaminobenzoic acid
3,5-Diaminobenzoic acid
CAS: 535-87-5
Molecular Formula: C7H8N2O2
3,5-Diaminobenzoic acid - Names and Identifiers
| Name | 3,5-Diaminobenzoic acid |
| Synonyms | DABA 3,5-DABA 3,5-DiaMinoben 3, 5-2 aMino acid DiaMinobenzoic aci 3,5-diaminobenzoate 3,5-Diaminobenzoic a 3,5-Diaminobenzoic acid 3,5-DIAMINOBENZOIC ACID 3,5-Diamino Benzoic Acid 3,5- twoaMinobenzoic acid sodium 3,5-diaminobenzoate 5-carboxybenzene-1,3-diaminium dichloride 5-Carboxybenzene-1,3-diamine, 5-Carboxyphenylene-1,3-diamine |
| CAS | 535-87-5 |
| EINECS | 208-621-0 |
| InChI | InChI=1/C7H8N2O2/c8-5-1-4(7(10)11)2-6(9)3-5/h1-3H,8-9H2,(H,10,11)/p-1 |
| InChIKey | UENRXLSRMCSUSN-UHFFFAOYSA-N |
3,5-Diaminobenzoic acid - Physico-chemical Properties
| Molecular Formula | C7H8N2O2 |
| Molar Mass | 152.15 |
| Density | 1.2804 (rough estimate) |
| Melting Point | 235-238 °C (dec.) (lit.) |
| Boling Point | 274.61°C (rough estimate) |
| Flash Point | 235-240°C |
| Water Solubility | Very soluble in water. |
| Solubility | Slightly soluble in water, soluble in ethanol and ether. |
| Vapor Presure | 0Pa at 25℃ |
| Appearance | White to gray powder |
| Color | White to gray |
| Merck | 14,2978 |
| BRN | 2086484 |
| pKa | pK1:5.30 (25°C) |
| Storage Condition | Keep in dark place,Sealed in dry,Room Temperature |
| Refractive Index | 1.5200 (estimate) |
| MDL | MFCD00007807 |
| Physical and Chemical Properties | Melting point 235-238°C decomposition temperature 235-240°C |
| Use | Used as a pharmaceutical Intermediate |
3,5-Diaminobenzoic 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. S37/39 - Wear suitable gloves and eye/face protection |
| WGK Germany | 3 |
| RTECS | DG6186000 |
| TSCA | Yes |
| HS Code | 29224995 |
| Hazard Note | Irritant |
3,5-Diaminobenzoic acid - Introduction
Melting point 228 ℃ (slow heating),240 ℃ (rapid heating). Generally, it contains one crystal water and loses crystal water at 110 ℃. Slightly soluble in water, and decomposed for a long time, solubility in water: 7g/L (22°C). Soluble in ethanol and ether
Last Update：2022-10-16 17:26:00
3,5-Diaminobenzoic acid - Reference Information
| Decomposition | 235-240 ºC |
| LogP | -0.51 |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| Uses | 3, 5-diaminobenzoic acid is an important chemical intermediate that can be used to synthesize various pharmaceutical and dye products, such as: A series of yellow reactive dyes derived from it can be used as dark yellow dyes or as yellow components in black dyes, such as activated orange 6R, it is one of the three primary colors of many active black and has great market application prospects. Organic synthesis intermediates, raw materials for the production of drug pantothenic acid. Used as a pharmaceutical intermediate |
| application category | 3, 5-diaminobenzoic acid is an important monomer of new material polyimide film, polyimide film is a new type of high temperature resistant polymer material with excellent comprehensive performance, which is widely used in high temperature resistant coatings, electromagnetic wires, semiconductor protective layers, flexible printed circuit boards, solar modules and other fields. In addition, 3, 5-diaminobenzoic acid is also an important dye and pharmaceutical intermediate, and a series of yellow reactive dyes can be derived from it. in the field of medicine, 3, 5-diaminobenzoic acid is mainly used to synthesize pantothenic acid, a contrast agent for the diagnosis of cardiovascular and cerebrovascular diseases and urinary system diseases. It can also synthesize sulfonamides with wide antibacterial spectrum, low price and high efficiency. |
| preparation | 3, 5-diaminobenzoic acid is generally obtained by reduction reaction with m-dinitrobenzoic acid as raw material, which mainly includes three methods: iron powder reduction, hydrazine reduction and hydrogenation reduction. The method of producing 3, 5-diaminobenzoic acid by iron powder reduction has lower cost and more mature conditions, but the labor protection conditions are poor and the environmental pollution caused by iron mud is serious. |
| production method | benzoic acid is obtained by nitrification and reduction. |
Last Update：2024-04-09 20:48:19
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