Molekula
Hydroquinone (Cosmetic grade)
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 (cosmetic grade) is a white crystalline solid used primarily as a skin-lightening agent in cosmetics and depigmenting treatments, helping to reduce melanin production. It is also employed in hair dyes and as a photographic developer. This cosmetic-grade chemical has a CAS number of 123-31-9, a molecular formula of C6H4(OH)2, and a molecular weight of 110.11. It should be stored at ambient temperatures and handled with caution, as it carries a "Danger" signal word. Molekula supplies Hydroquinone (cosmetic grade) 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
Pack sizes & pricing
Pricing on request — packs available from research to bulk quantities.
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | White to off-white Crystalline Powder or Needles |
| Melting Point | 171 - 174 °C |
| Solubility | Slightly Soluble In Water. Freely Soluble In Ethyl Alcohol, Acetone And Methanol. Soluble In Ethyl Ether. Very Slightly Soluble In Chloroform. |
| Assay | ≥ 99.0 % |
| Moisture | ≤ 0.6 % |
| Iron (Fe) | ≤ 5 ppm |
| Lead (Pb) | ≤ 10 ppm |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Flash Point | 165 °C |
| Transport Class | 6.1 |
| Packing Group | III |
| Acidity | Acid |
Identification
| Property | Value |
|---|---|
| SKU | 90038122 |
| CAS Number | 123-31-9 |
| Molecular Formula | C6H4(OH)2 |
| Molecular Weight | 110.11 |
| SMILES | C1=CC(=CC=C1O)O |
| UN Number | UN2811 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 2907.22.5000 |
| Tariff Code | 2907220010 |
Safety & GHS
-
Corrosive
GHS05
-
Toxic
GHS06
-
Health Hazard
GHS07
-
Serious Health Hazard
GHS08
-
Hazardous to the Environment
GHS09
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
Documents
Safety Data Sheets (SDS)
Available in English, 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 (cosmetic grade) used for?
Hydroquinone is primarily used in cosmetic formulations as a skin-lightening agent to reduce hyperpigmentation, melasma, and age spots.
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**.
What safety classification does hydroquinone (cosmetic grade) have?
Hydroquinone is classified with the **Signal Word: Danger** due to its potential health hazards.
How should hydroquinone (cosmetic grade) be stored?
Store hydroquinone at **ambient temperature** in a cool, dry place, away from direct sunlight and incompatible substances.
Does Molekula supply hydroquinone in bulk quantities?
Yes, Molekula can supply hydroquinone in bulk, with quantities tailored to your production needs—please contact us for pricing and availability.
What documentation is provided with a hydroquinone order?
Each order includes a **Certificate of Analysis (CoA)**, **Material Safety Data Sheet (MSDS)**, and **batch-specific documentation** for traceability.
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.