Benzoic acid, 4-hydroxy-3-Methyl-
4-Hydroxy-3-methylbenzoic acid
CAS: 499-76-3
Molecular Formula: C8H8O3
Benzoic acid, 4-hydroxy-3-Methyl- - Names and Identifiers
| Name | 4-Hydroxy-3-methylbenzoic acid |
| Synonyms | AKOS BBS-00004298 4-HYDROXY-3-METHYLBE 4-Hydroxy-m-toluic acid 3-Methyl-4-hydroxybenzoic acid 4-Hydroxy-3-methylbenzoic acid Benzoic acid, 4-hydroxy-3-Methyl- 4-HYDROXY-3-METHYLBENZOIC ACID hemihydrate 4-Hydroxy-m-toluic acid, 4-Carboxy-o-cresol |
| CAS | 499-76-3 |
| EINECS | 207-890-1 |
| InChI | InChI=1/C8H8O3/c1-5-4-6(8(10)11)2-3-7(5)9/h2-4,9H,1H3,(H,10,11) |
Benzoic acid, 4-hydroxy-3-Methyl- - Physico-chemical Properties
| Molecular Formula | C8H8O3 |
| Molar Mass | 152.15 |
| Density | 1.304±0.06 g/cm3(Predicted) |
| Melting Point | 173-177 °C |
| Boling Point | 112 °C(Press: 1 Torr) |
| Flash Point | 168.4°C |
| Solubility | soluble in Methanol |
| Vapor Presure | 6.26E-05mmHg at 25°C |
| Appearance | Crystallization |
| Color | Light yellow to Yellow to Orange |
| pKa | 4?+-.0.10(Predicted) |
| Storage Condition | Inert atmosphere,Room Temperature |
| Refractive Index | 1.599 |
| MDL | MFCD00270105 |
| Physical and Chemical Properties | Needle-like crystals. Melting Point 174-175 °c, soluble in hot water, ethanol and ether. |
| In vitro study | 4-Hydroxy-3-methylbenzoic acid was isolated as the product of oxidation of 2,4-xylenol by cells inhibited with alpha alpha'-bipyridyl. |
Benzoic acid, 4-hydroxy-3-Methyl- - Risk and Safety
| Risk Codes | R22 - Harmful if swallowed R37/38 - Irritating to respiratory system and skin. R41 - Risk of serious damage to eyes |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/39 - S36 - Wear suitable protective clothing. |
| WGK Germany | 2 |
| HS Code | 29182900 |
| Hazard Class | IRRITANT |
Benzoic acid, 4-hydroxy-3-Methyl- - Reference Information
| biological activity | 4-Hydroxy-3-methylbenzoic acid is a normal organic acid found in normal human urine samples. |
| use | azo dye intermediate. |
| Production method | is obtained by acid methylation of o-cresol. The o-cresol and 50% sodium hydroxide aqueous solution are added to the reaction kettle, after being treated with steam, carbon dioxide is pressed below 160 ℃, crude o-cresol p-formate is distilled, and then neutralized with sulfuric acid, Refined, and finally vacuum dried to obtain the finished product, the yield is 88%. |
Last Update：2024-04-09 19:05:12
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View History
Benzoic acid, 4-hydroxy-3-Methyl-
2,6-二氯-3-碘吡-
2-Bromo-1-(-2-chlorophenyl)ethanone
METHYL 2-HYDROXYOCTADECANOATE
3,5-Dichlorobenzylamine
p-Methylazobenzene
二甲基二噁烷
邻氰基苯乙酸
methyl 4-methoxy-3-methylbenzoate
丙烯基三氯硅烷
2,6-二氯-3-碘吡-
2-Bromo-1-(-2-chlorophenyl)ethanone
METHYL 2-HYDROXYOCTADECANOATE
3,5-Dichlorobenzylamine
p-Methylazobenzene
二甲基二噁烷
邻氰基苯乙酸
methyl 4-methoxy-3-methylbenzoate
丙烯基三氯硅烷