Peptones, agars and ingredients
Pharmaceutical Agar
Gelling agent for culture media.
- Cat. No.
- LC-1816
- Category
- Peptones, agars and ingredients
- Format
- 500 g
- Storage
- 2 to 25 °C
- Minimum guaranteed shelf life
- 15 months
Agar is a natural hydrocolloid extracted from several species of red algae, mainly the Gelidium, Gracilaria and Pterocladia types. This is a pharmaceutical quality agar that follows the specifications of the European Pharmacopoeia and American Pharmacopoeia (USP). It is specifically designed for all kinds of applications in the pharmaceutical industry for medicinal and cosmetic preparations such as suspensions, reconstituting suspensions, emulsions, sprays, tablets, capsules and creams.
Key features
Industry
Ingredients for culture media.
Principles and uses
Histology: when dissolved in water, agar appears granular and somewhat filamentous. A few fragments of the spicules of sponges and a few frustules of diatoms may be present.
Technical specifications
| Loss on drying | ≤ 20% |
|---|---|
| Ash | ≤ 5% |
| Gel strength (Nikan method, 1.5% at 20 °C) | 750-1000 g/cm² |
| Melting point (1.5%) | 85 ± 5 °C |
| Particle size | ≥ 95% 60 mesh |
| Gelling point (1.5%) | 35 ± 3 °C |
| Color | White to light cream |
| Arsenic | ≤ 3 ppm |
| Lead | ≤ 5 ppm |
| Mercury | ≤ 1 ppm |
| Cadmium | ≤ 1 ppm |
| pH (1.5% solution) | 6.5-7.5 |
| Turbidity at 1.5% (NTU) | ≤ 35 NTU |
| Insoluble matter | < 1% |
| Starch/gelatin | Absence |
| Acid-insoluble ash | ≤ 0.5% |
| Water absorption | ≤ 75 |
| EP identification test ABCD | Passes |
| USP identification test AB | Passes |
| Colorimetry at 1.5% (420 nm) | ≤ 0.250 |
| Swelling index | > 10 |
| Storage | 2 to 25 °C |
Quality control
| Test | Specification |
|---|---|
| E. coli | Negative |
| Salmonella | Negative |
| Standard plate count | < 1000 CFU/g |
| Yeasts and molds | < 100 CFU/g |
What you receive
The product
Shipped under controlled temperature when the product requires it.
Lot certificate
Every lot comes with its certificate.
Tracked shipment
Follow your shipment live, from our warehouse to your lab.
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Frequently asked questions
Can I ask for formats other than those listed?
Yes: custom formats and OEM packs are available on request. Tell us the quantities you need.
How do I see the prices?
Prices are shown after you sign in to the customer area, with your account discount already applied.
How long does delivery take?
We give you the availability with the quote, within 24 hours of your request.