Molekula
Lactose monohydrate (Granulac 200)
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
Lactose monohydrate (Granulac 200) is a crystalline disaccharide sugar derived from milk, widely used as a filler, binder, and diluent in pharmaceuticals, food processing, and laboratory applications. It improves tablet compression, extends shelf life, and serves as a nutrient source in infant formulas and nutritional supplements. This high-purity grade features a CAS number of 64044-51-5, molecular formula C12H22O11·H2O, and a molecular weight of 360.32 g/mol. It is non-hazardous (no signal word) and stable under ambient storage conditions. Molekula supplies Lactose monohydrate (Granulac 200) 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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500 g — $58.70 per pack
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 or almost white, crystalline, odourless powder. |
| Water | 4.5 - 5.5 % |
| Heavy metals | ≤5µg/g |
| Identification | Conforms to reference |
| Salmonella | absence in 10g |
| Loss on Drying | ≤0.5% |
| Solubility | freely but slowly soluble in water, practically insoluble in ethanol (96 per cent) |
| Sulphated Ash | ≤0.1% |
| Appearance of Solution | max 3NTU (the solution is clear) |
| Specific optical rotation | +54.4 - +55.9 ° |
| Total Aerobic Count | ≤100cfu/g |
| Appearance of Solution (EP) | The solution is not more intensely coloured than reference solution BY |
| Particle Size Distribution | ≤ 32 μm: 45-75%; ≤100µm: ≥ 90% |
| E. Coli | absence in 10g |
| Mould & Yeast | ≤50cfu/g |
| Absorbance from 270 to 300 nm | ≤0.07 |
| Absorbance from 210 to 220 nm | ≤0.25 |
| pH (4.01g in 25ml Di water 15-16°C) | 4.66 |
| UV 400nm | ≤0.04 |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 90025742 |
| CAS Number | 64044-51-5 |
| IUPAC Name | (2R,3R,4S,5R,6S)-2-(hydroxymethyl)-6-[(2R,3S,4R,5R,6S)-4,5,6-trihydroxy-2-(hydroxymethyl)oxan-3-yl]oxyoxane-3,4,5-triol;hydrate |
| Molecular Formula | C12H22O11 · H2O |
| Molecular Weight | 360.32 |
| Exact Mass | 360.1268 |
| SMILES | C([C@@H]1[C@@H]([C@@H]([C@H]([C@@H](O1)O[C@@H]2[C@H](O[C@@H]([C@@H]([C@H]2O)O)O)CO)O)O)O)O.O |
| InChIKey | WSVLPVUVIUVCRA-KPKNDVKVSA-N |
| InChI | InChI=1S/C12H22O11.H2O/c13-1-3-5(15)6(16)9(19)12(22-3)23-10-4(2-14)21-11(20)8(18)7(10)17;/h3-20H,1-2H2;1H2/t3-,4-,5+,6+,7-,8-,9-,10-,11+,12+;/m1./s1 |
| PubChem CID | 104938 |
| REACH Code | Y113 |
| HTS Code | 17021100 |
| Tariff Code | 1702110000 |
Safety & GHS
Precautionary statements
- P264 Wash thoroughly after handling
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P308+313 IF exposed or concerned: Get medical advice/attention
Documents
Safety Data Sheets (SDS)
Available in English, English (US), 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 Lactose monohydrate (Granulac 200) commonly used for?
Lactose monohydrate is primarily used in the pharmaceutical industry as an excipient in tablet formulations, as a diluent, binder, and filler, and also in food and dairy products as a sweetener or carrier.
What is the chemical formula and molecular weight of Lactose monohydrate?
The chemical formula is **C₁₂H₂₂O₁₁·H₂O**, and the molecular weight is **360.32 g/mol**.
How should Lactose monohydrate (Granulac 200) be stored?
Store in a cool, dry place at ambient temperature, ensuring the container is tightly sealed to prevent moisture absorption.
What grades or purity levels of Lactose monohydrate does Molekula supply?
Molekula supplies **Granulac 200**, a high-purity pharmaceutical-grade lactose monohydrate suitable for tablet manufacturing and other applications requiring consistent particle size and flow properties.
Can Molekula supply Lactose monohydrate in bulk quantities?
Yes, Molekula can supply Lactose monohydrate in bulk, with flexible packaging options (e.g., drums, bags) to meet large-scale production needs.
What documentation is provided with an order of Lactose monohydrate?
Each order includes a **Certificate of Analysis (CoA)**, **Material Safety Data Sheet (MSDS)**, and a **batch-specific quality certificate** to ensure compliance with pharmaceutical and food-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.