Molekula
Pyran-3,5-dione
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
Pyran-3,5-dione is a cyclic diketone used primarily as a reagent in organic synthesis, particularly for forming heterocycles and as a precursor in pharmaceutical and agrochemical production. It appears as a crystalline solid with limited stability, requiring careful handling. This compound has a CAS number of 61363-56-2, a molecular formula of C5H6O3, and a molecular weight of 114.10 g/mol. Store at 2–8°C, and note its signal word is "Warning." Molekula supplies Pyran-3,5-dione 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.
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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1 g — £53.20 per pack ex VAT · £63.84 inc. VAT
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5 g — £140.10 per pack ex VAT · £168.12 inc. VAT
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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.
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Specifications
| Property | Value |
|---|---|
| Appearance | Yellow to brown solid |
| Melting Point | 125 - 130°C |
| Identification | HNMR |
| Assay (HPLC) | ≥98% |
| Identification (IR) | Conforms to structure |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | 2 to 8 °C |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 90032569 |
| CAS Number | 61363-56-2 |
| IUPAC Name | oxane-3,5-dione |
| Molecular Formula | C5H3O(O2) |
| Molecular Weight | 114.10 |
| Exact Mass | 114.0317 |
| SMILES | C1C(=O)COCC1=O |
| InChIKey | SMIQVIXGQSMHKF-UHFFFAOYSA-N |
| InChI | InChI=1S/C5H6O3/c6-4-1-5(7)3-8-2-4/h1-3H2 |
| PubChem CID | 325287 |
| REACH Code | Y110 |
| HTS Code | 29329990 |
| Tariff Code | 2932990090 |
Safety & GHS
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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
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- 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
- P304+340 IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
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.
Synonyms
- 2H-pyran-3,5(4H,6H)-dione
- oxane-3,5-dione
- tetrahydropyran-3,5-dione
Frequently asked questions
What is Pyran-3,5-dione (CAS 61363-56-2) commonly used for?
Pyran-3,5-dione is primarily used as a synthetic intermediate in organic chemistry, particularly in the production of pharmaceuticals, agrochemicals, and fine chemicals.
What is the molecular formula and molecular weight of Pyran-3,5-dione?
The molecular formula is C5H6O3, and the molecular weight is 114.10 g/mol.
How should Pyran-3,5-dione be stored?
Store Pyran-3,5-dione between 2–8°C in a cool, dry place, away from incompatible substances and moisture.
What grade or purity levels does Molekula offer for Pyran-3,5-dione?
Molekula supplies Pyran-3,5-dione in high-purity analytical and synthetic grades (typically ≥98% purity).
Can Molekula supply Pyran-3,5-dione in bulk quantities?
Yes, Molekula can provide Pyran-3,5-dione in bulk, with quantities tailored to your research or production needs.
What documentation comes with an order of Pyran-3,5-dione?
Each order includes a Certificate of Analysis (CoA), Material Safety Data Sheet (MSDS), and a product specification sheet.
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.