Molekula
Glycerol, 99.5%, Spectrophotometric 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
Glycerol, 99.5% pure and spectrophotometric grade, is a clear, colorless, viscous liquid used as a solvent, humectant, and plasticizer in pharmaceuticals, cosmetics, and analytical chemistry. It ensures high optical clarity and purity for UV-Vis spectroscopy and other sensitive applications. This product has a CAS number of 56-81-5, molecular formula C3H8O3, and a molecular weight of 92.05 g/mol. It requires no special storage beyond ambient conditions and carries no signal word for hazard classification. Molekula supplies Glycerol, 99.5%, Spectrophotometric 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 | Clear colourless liquid |
| Purity (GC) | ≥ 99.5% |
| APHA | ≤ 30 |
| Water (KF) | ≤ 0.5% |
| 210nm | ≤ 0.70 |
| UV Absorption (280nm) | ≤ 0.50 |
| 225nm | ≤ 0.25 |
| 340nm | ≤ 0.01 |
| 206nm | ≤ 1.00 |
| 320nm | ≤ 0.02 |
| UV 400nm | ≤ 0.01 |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | Syrupy, rhombic plates |
| Odour | Mild odor |
| Melting Point | 18.1 °C |
| Boiling Point | 290 °C |
| Density | 1.26 (relative, water = 1) |
| Water Solubility | 5296 g/L at 25 °C |
| Vapour Pressure | 0.01 Pa at 25 °C |
| Refractive Index | 1.4746 |
| pKa | pKa = 14.4 |
| log P (octanol/water) | -1.76 |
Source: PubChem CID 753 (HSDB, ICSC)
Identification
| Property | Value |
|---|---|
| SKU | 90033192 |
| CAS Number | 56-81-5 |
| IUPAC Name | propane-1,2,3-triol |
| EC Number | 200-289-5 |
| Molecular Formula | C3H8O3 |
| Molecular Weight | 92.05 |
| Exact Mass | 92.0473 |
| SMILES | C(C(CO)O)O |
| InChIKey | PEDCQBHIVMGVHV-UHFFFAOYSA-N |
| InChI | InChI=1S/C3H8O3/c4-1-3(6)2-5/h3-6H,1-2H2 |
| PubChem CID | 753 |
| REACH Code | Y113 |
| TSCA Listed | Yes |
| HTS Code | 29054500 |
| Tariff Code | 1520000000 |
Safety & GHS
Detailed safety information available in the SDS — see Documents below.
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
- 1,2,3-Propanetriol
- 1,2,3-trihydroxypropane
- glycerin
- Glycerine
- Glyceritol
- Glycyl alcohol
- Glyrol
- Glysanin
- Osmoglyn
- Trihydroxypropane
Frequently asked questions
What is glycerol (99.5%, spectrophotometric grade) primarily used for?
This high-purity glycerol is ideal for applications requiring optical clarity and low UV absorbance, such as spectrophotometry, chromatography, and analytical lab procedures.
What is the chemical formula and molecular weight of this glycerol?
The chemical formula is **C₃H₈O₃**, and the molecular weight is **92.05 g/mol**.
How should this glycerol be stored?
Store in a tightly sealed container at **ambient temperature**, away from strong oxidizers or contaminants.
What grade is this glycerol, and how does it differ from technical grades?
This is **spectrophotometric grade**, meaning it has ultra-low absorbance in the UV-Vis range, making it suitable for precise optical measurements—unlike technical grades, which may contain impurities.
Can Molekula supply this glycerol in bulk quantities?
Yes, we offer this product in bulk packaging (e.g., drums, IBCs) for large-scale applications—please contact us for specific volume requirements and lead times.
What documentation comes with an order of this glycerol?
Each order includes a **Certificate of Analysis (CoA)** confirming purity (99.5%+), spectrophotometric absorbance data, and compliance with spectrophotometric grade 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.