Molekula
Hydroquinone monomethyl ether (4-Methoxyphenol)
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Hydroquinone monomethyl ether, also known as 4-Methoxyphenol, is a phenolic compound used in organic synthesis, pharmaceuticals, and as a stabilizer in polymers. It is added as a polymerization inhibitor to acrylic monomers and acrylonitrile, and also serves as a UV inhibitor and a stabilizer for chlorinated hydrocarbons and ethyl cellulose. It appears as a white to pale yellow crystalline solid. CAS: 150-76-5, Molecular Formula: C7H8O2, Molecular Weight: 124.14 g/mol, Storage: Ambient, Signal Word: Warning. Molekula supplies Hydroquinone monomethyl ether from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
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500 g — $113.60 per pack
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Specifications
| Property | Value |
|---|---|
| Appearance | White flake crystal |
| Melting Point | 54 - 56.5°C |
| Loss on Drying | ≤0.3% |
| Assay | ≥99.5% |
| Residue on Ignition | ≤0.01% |
| Heavy Metals (Pb) | ≤0.001% |
| Hydroquinone | ≤0.05% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Flash Point | 132 °C |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | Plates |
| Odour | Odor of caramel and phenol |
| Melting Point | 54 °C |
| Boiling Point | 253 °C |
| Solubility (other solvents) | Soluble in benzene, carbon tetrachloride; very soluble in ethanol, ether |
| Vapour Pressure | 6.75 × 10⁻³ mmHg at 20 °C |
| pKa | pKa = 10.05 |
| log P (octanol/water) | 1.41 |
Source: PubChem CID 9015 (HSDB)
Identification
| Property | Value |
|---|---|
| SKU | 46482675 |
| CAS Number | 150-76-5 |
| IUPAC Name | 4-methoxyphenol |
| EC Number | 205-769-8 |
| Molecular Formula | CH3OC6H4OH |
| Molecular Weight | 124.14 |
| Exact Mass | 124.0524 |
| SMILES | COC1=CC=C(C=C1)O |
| InChIKey | NWVVVBRKAWDGAB-UHFFFAOYSA-N |
| InChI | InChI=1S/C7H8O2/c1-9-7-4-2-6(8)3-5-7/h2-5,8H,1H3 |
| PubChem CID | 9015 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 2909.50.4500 |
| Tariff Code | 2909500090 |
Safety & GHS
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Health Hazard
GHS07
Hazard statements
- H302 Harmful if swallowed
- H317 May cause an allergic skin reaction
- H319 Causes serious eye irritation
- H412 Harmful to aquatic life with long lasting effects
Precautionary statements
- P264 Wash thoroughly after handling
- P273 Avoid release to the environment
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+312 IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell
- P303+361 IF ON SKIN (or hair): Remove immediately all contaminated clothing. Rinse with water/shower
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
Documents
Safety Data Sheets (SDS)
Available in English, English (US), French, German, Italian, Portuguese, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
No alternate names recorded for this product.
Frequently asked questions
What is Hydroquinone monomethyl ether used for?
It is primarily used as a stabilizer in polymers and resins, and as an intermediate in the synthesis of pharmaceuticals and agrochemicals.
What is the chemical formula and molecular weight of Hydroquinone monomethyl ether?
The formula is CH3OC6H4OH and the molecular weight is 124.14 g/mol.
How should Hydroquinone monomethyl ether be stored?
It should be stored at ambient temperature, protected from light and moisture.
What grade is available for this product?
Molekula offers this product in technical grade; custom grades may be available upon request.
Can Molekula supply Hydroquinone monomethyl ether in bulk?
Yes, Molekula can supply this product in bulk quantities; please contact our sales team for pricing and availability.
What documentation comes with an order of Hydroquinone monomethyl ether?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS); additional documentation can be provided upon request.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.