5-Hydroxyvanilline
3,4-dihydroxy-5-methoxybenzaldehyde
CAS: 3934-87-0
Molecular Formula: C8H8O4
5-Hydroxyvanilline - Names and Identifiers
| Name | 3,4-dihydroxy-5-methoxybenzaldehyde |
| Synonyms | 5-Hydroxyvanilin 5-Hydroxyvanillin 5-hydroxyvanillin 5-Hydroxyvanilline 5-Methoxyprotocatechualdehyde 5-methoxy-protocatechualdehyd Protocatechualdehyde, 5-methoxy- 3,4-dihydroxy-5-methoxy-benzaldehyd 5-METHOXY-3,4-DIHYDROXYBENZALDEHYDE 3,4-dihydroxy-5-methoxybenzaldehyde Benzaldehyde, 3,4-dihydroxy-5-methoxy- |
| CAS | 3934-87-0 |
| EINECS | 223-513-3 |
| InChI | InChI=1/C8H8O4/c1-12-7-3-5(4-9)2-6(10)8(7)11/h2-4,10-11H,1H3 |
| InChIKey | RRKMWVISRMWBAL-UHFFFAOYSA-N |
5-Hydroxyvanilline - Physico-chemical Properties
| Molecular Formula | C8H8O4 |
| Molar Mass | 168.15 |
| Density | 1.378±0.06 g/cm3(Predicted) |
| Melting Point | 131-134°C |
| Boling Point | 339.9±37.0 °C(Predicted) |
| Flash Point | 143.1°C |
| Vapor Presure | 4.54E-05mmHg at 25°C |
| pKa | 7.63±0.23(Predicted) |
| Storage Condition | under inert gas (nitrogen or Argon) at 2-8°C |
| Refractive Index | 1.63 |
| Physical and Chemical Properties | Crystallization. Melting point 130-131 °c (132.5-134 °c). |
5-Hydroxyvanilline - 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 | 3 |
| RTECS | CU5620000 |
5-Hydroxyvanilline - Reference Information
| NIST chemical information | Information provided by: webbook.nist.gov (external link) |
| uses | intermediates of bifendate. |
| Production method | Use vanillin to brominate with bromine to generate 5-bromovanillin, and the latter is reacted with sodium hydroxide solution in copper powder to prepare the product. |
Last Update：2024-04-09 21:32:01
