Molekula
Pyrogallol (1,2,3-Trihydroxybenzene)
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
Pyrogallol (1,2,3-Trihydroxybenzene) is a white to pale yellow crystalline solid used primarily as a reducing agent, in photography, and as a reagent for detecting oxygen. It is also employed in the production of resins and as a stabilizer in organic synthesis. This chemical has a CAS number of 87-66-1, with the molecular formula C6H3(OH)3 and a molecular weight of 126.11. It is stored at ambient temperatures and carries a signal word of Danger. Molekula supplies Pyrogallol 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.
Often bought together
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.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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100 g — £46.40 per pack ex VAT · £55.68 inc. VAT
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 crystalline powder |
| Melting Point | 130.0°C - 135.0°C |
| Water | ≤ 0.5% |
| Heavy metals | ≤ 5mg/kg |
| Identification | Conforms to reference |
| Chloride (Cl-) | ≤ 0.002% |
| Assay | ≥ 99.0% |
| Residue on Ignition | ≤ 0.1% |
| Lead (Pb) | ≤ 3mg/kg |
| Arsenic (As) | ≤ 3mg/kg |
| Sulphates (SO4)(2-) | ≤ 0.005% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Transport Class | 6.1 |
| Packing Group | III |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 61888959 |
| CAS Number | 87-66-1 |
| Molecular Formula | C6H3(OH)3 |
| Molecular Weight | 126.11 |
| SMILES | C1=CC(=C(C(=C1)O)O)O |
| UN Number | UN2811 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 29072990 |
| Tariff Code | 2907290090 |
Safety & GHS
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Toxic
GHS06
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Serious Health Hazard
GHS08
Hazard statements
- H301 Toxic if swallowed
- H312+H332 Harmful in contact with skin or inhaled
- H317 May cause an allergic skin reaction
- H319 Causes serious eye irritation
- H341 Suspected of causing genetic defects
- H412 Harmful to aquatic life with long lasting effects
Precautionary statements
- P201 Obtain special instructions before use
- 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+310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician
- 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, 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 pyrogallol (1,2,3-trihydroxybenzene) commonly used for?
Pyrogallol is primarily used as a reducing agent, in photography (developer), as an antioxidant, and in the production of dyes, resins, and pharmaceuticals.
What is the molecular formula and molecular weight of pyrogallol?
The molecular formula is **C₆H₆O₃** (or C₆H₃(OH)₃), and the molecular weight is **126.11 g/mol**.
How should pyrogallol be stored?
Store pyrogallol in a tightly sealed container at **ambient temperature**, away from moisture, light, and incompatible substances.
What grades or purity levels of pyrogallol does Molekula supply?
Molekula supplies pyrogallol in **technical grade** and **high-purity analytical grade** (typically ≥98%).
Can Molekula supply pyrogallol in bulk quantities?
Yes, Molekula can supply pyrogallol in bulk, with quantities ranging from kilograms to metric tons—contact us for custom packaging options.
What documentation comes with a pyrogallol order?
Each order includes a **Certificate of Analysis (CoA)**, **Material Safety Data Sheet (MSDS/SDS)**, 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.