Molekula
5-Methylresorcinol monohydrate (Orcinol monohydrate)
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 1999 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
5-Methylresorcinol monohydrate, also called orcinol monohydrate, is a yellow-brown to beige solid used primarily as a chemical intermediate in organic synthesis, pharmaceuticals, and as a reagent in analytical chemistry. It is also employed in the production of dyes and resins. This compound has a CAS number of 6153-39-5, with the molecular formula C7H8O2·H2O and a molecular weight of 142.15 g/mol. It is stable at ambient storage conditions but carries a warning signal word due to potential health hazards.
Molekula supplies 5-Methylresorcinol monohydrate (Orcinol monohydrate) at ≥98% purity in 25 g packs, from £74.52 inc. VAT. It is in stock for same-day dispatch. Every batch ships with a certificate of analysis, and safety data sheets are available in 6 languages. Larger quantities, up to multi-tonne, are quoted on request.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
In stock — same-day dispatch
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.
-
25 g — £62.10 per pack ex VAT · £74.52 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 | Yellow-brown/beige solid |
| Assay | ≥98% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 70074916 |
| CAS Number | 6153-39-5 |
| IUPAC Name | 5-methylbenzene-1,3-diol;hydrate |
| Molecular Formula | C7H8O2.H2O |
| Molecular Weight | 142.15 |
| Exact Mass | 142.063 |
| SMILES | CC1=CC(=CC(=C1)O)O.O |
| InChIKey | NBKPNAMTHBIMLA-UHFFFAOYSA-N |
| InChI | InChI=1S/C7H8O2.H2O/c1-5-2-6(8)4-7(9)3-5;/h2-4,8-9H,1H3;1H2 |
| PubChem CID | 3083941 |
| REACH Code | Y110 |
| HTS Code | 2907.29.9000 |
| Tariff Code | 2907290090 |
Safety & GHS
-
Health Hazard
GHS07
Hazard statements
- H302 Harmful if swallowed
- H315 Causes skin irritation
- H319 Causes serious eye irritation
- H335 May cause respiratory irritation
Precautionary statements
- 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
- P302+352 IF ON SKIN: Wash with soap and water
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
- P308+P313 IF exposed or concerned: Get medical advice/attention
- P405 Store locked up
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.
Quality certificates
Molekula Group is certified to ISO 9001:2015 (quality) and ISO 14001:2015 (environmental management), audited by a UKAS-accredited body. Both certificates are valid to 17 May 2028.
Synonyms
No alternate names recorded for this product.
Frequently asked questions
What is 5-Methylresorcinol monohydrate (Orcinol monohydrate) commonly used for?
It is primarily used in analytical chemistry for the detection of carbohydrates (e.g., in the orcinol test) and as a reagent in biochemical assays.
What is the chemical formula and molecular weight of 5-Methylresorcinol monohydrate?
The formula is C₇H₈O₂·H₂O, and the molecular weight is 142.15 g/mol.
How should 5-Methylresorcinol monohydrate be stored?
Store at ambient temperature in a tightly sealed container, away from moisture and direct sunlight.
What purity grades are available for this product?
Molekula supplies this product with an assay of ≥98% for laboratory applications.
Can Molekula supply 5-Methylresorcinol monohydrate in bulk quantities?
Yes, bulk quantities are available upon request—contact our sales team for custom packaging options.
What documentation comes with an order of 5-Methylresorcinol monohydrate?
Each order includes a Certificate of Analysis (CoA), Material Safety Data Sheet (MSDS), and a product specification sheet.
Where can I buy 5-Methylresorcinol monohydrate (Orcinol monohydrate)?
Directly from Molekula, which lists 5-Methylresorcinol monohydrate (Orcinol monohydrate) in 25 g packs from £74.52 inc. VAT, with a certificate of analysis for every batch. Larger quantities are quoted on request. Molekula's offices: United Kingdom, France, Spain, Germany, Italy, United States and China.
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.