Molekula Methyl 4-hydroxybenzoate (Methyl paraben)
Specification & product details.
Methyl 4-hydroxybenzoate, commonly known as methyl paraben, is a widely used preservative in pharmaceuticals, cosmetics, and food products to inhibit…
CAS number: 99-76-3
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Specifications
| Property | Value |
| Appearance | White powder |
| Melting Point | 125 - 128°C |
| Identification | Conforms to reference |
| Loss on Drying | ≤ 0.5% |
| Solubility | Very slightly soluble in water, freely in alcohol and methanol |
| Sulphated Ash | ≤ 0.05% |
| Assay (dried basis) | ≥99.0% |
Storage & handling
| Property | Value |
| Storage Temperature | Ambient |
| Transport Class | 9 |
| Packing Group | III |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
| Appearance | White needles |
| Odour | Odorless or has faint characteristic odor |
| Melting Point | 125.2 °C |
| Boiling Point | 270.5 °C (decomposes) |
| Water Solubility | 2.5 g/L at 25 °C |
| Solubility (other solvents) | Slightyl soluble in water; very soluble in ethanol, ether, acetone; soluble in trfluoroacetic acid |
| Vapour Pressure | 0.000237 mmHg |
| log P (octanol/water) | 1.96 |
Identification
| Property | Value |
| SKU | 14385952 |
| CAS Number | 99-76-3 |
| IUPAC Name | methyl 4-hydroxybenzoate |
| EC Number | 202-785-7 |
| Molecular Formula | HOC6H4CO2CH3 |
| Molecular Weight | 152.15 |
| Exact Mass | 152.0473 |
| SMILES | O=C(OC)C1=CC=C(O)C=C1 |
| InChIKey | LXCFILQKKLGQFO-UHFFFAOYSA-N |
| InChI | InChI=1S/C8H8O3/c1-11-8(10)6-2-4-7(9)5-3-6/h2-5,9H,1H3 |
| PubChem CID | 7456 |
| UN Number | UN3077 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 29182904 |
| Tariff Code | 2918290060 |
Safety & GHS
Warning
- Health HazardGHS07
- Hazardous to the EnvironmentGHS09
Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
- H411Toxic to aquatic life with long lasting effects
Precautionary statements
- P261Avoid breathing dust/fume/gas/mist/vapours/spray
- P273Avoid release to the environment
- P280Wear protective gloves/protective clothing/eye protection/face protection
- P302+352IF ON SKIN: Wash with soap and water
- P305+351+338IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
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Alternative names
Maseptol; Methyl 4-hydroxybenzoate; Methyl p-hydroxybenzoate; Methyl parahydroxybenzoate; METHYLPARABEN; Moldex; Nipagin; p-Hydroxybenzoic acid methyl ester; Preserval M; Tegosept M
Product documentation
Product specification PDF. Batch-specific certificates of analysis and safety data sheets are available on request.
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