Molekula
Hydroquinone
Hydroquinone is a white crystalline solid used in organic synthesis, as a photographic developer, and in dermatological treatments for hyperpigmentation. It is a potent reducing agent and antioxidant. Available in powder form with a CAS number of 123-31-9, molecular formula C6H4(OH)2, and molecular weight 110.11 g/mol. Store at ambient temperature. Hazardous: signal word Danger. Molekula supplies Hydroquinone from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Overview
Hydroquinone is a white crystalline solid used in organic synthesis, as a photographic developer, and in dermatological treatments for hyperpigmentation. It is a potent reducing agent and antioxidant. Available in powder form with a CAS number of 123-31-9, molecular formula C6H4(OH)2, and molecular weight 110.11 g/mol. Store at ambient temperature. Hazardous: signal word Danger. Molekula supplies Hydroquinone from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Specifications
| Property | Value |
|---|---|
| Appearance | White solid |
| Melting Point | 171.0°C - 174.0°C |
| Identification | Conforms to reference |
| Assay | ≥99.5% |
| Iron | ≤5 ppm |
| Moisture | ≤0.60% |
| Sulphuric Ashes | ≤0.0500% |
| Heavy Metals (as lead) | ≤10 ppm |
| Appearance of aqueous solution at 5% | Clear to very slightly cloudy |
| Colour of this solution | ≤30 Hazen |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Flash Point | 165 C |
| Transport Class | 6.1 |
| Packing Group | III |
| Shelf Life | 24 months |
| Acidity | Acid |
Identification
| Property | Value |
|---|---|
| CAS Number | 123-31-9 |
| Molecular Formula | C6H4(OH)2 |
| Molecular Weight | 110.11 |
| SMILES | C1=CC(=CC=C1O)O |
| EC / UN Number | 2811 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 2907.22.5000 |
| Tariff Code | 2907220010 |
Safety & GHS
-
Explosive
GHS01
-
Flammable
GHS02
-
Compressed Gas
GHS04
-
Corrosive
GHS05
-
Toxic
GHS06
Hazard statements
- H301 Toxic if swallowed
- H317 May cause an allergic skin reaction
- H318 Causes serious eye damage
- H341 Suspected of causing genetic defects
- H351 Suspected of causing cancer
- H400 Very toxic to aquatic life
Precautionary statements
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- 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
For research and industrial use only
Documents
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.
Pricing & pack sizes
Synonyms
No alternate names recorded for this product.
Frequently asked questions
What is hydroquinone used for?
Hydroquinone is primarily used in organic synthesis, as an antioxidant in rubber and plastics, and in pharmaceuticals for skin lightening treatments.
What is the chemical formula and molecular weight of hydroquinone?
The chemical formula is C6H4(OH)2 and the molecular weight is 110.11 g/mol.
How should hydroquinone be stored?
Hydroquinone should be stored at ambient temperature, protected from light and air to prevent oxidation.
What grade of hydroquinone does Molekula supply?
Molekula supplies hydroquinone in analytical grade, suitable for laboratory and industrial applications.
Can Molekula supply hydroquinone in bulk?
Yes, Molekula can supply hydroquinone in bulk quantities; please contact our sales team for pricing and availability.
What documentation comes with a hydroquinone order?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS), compliant with regulatory standards.
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.