Products Description
Choosing a suitable counterion is vital to boost the solubility and bioavailability of pharmaceutical substances. Meglumine, also known as N-methyl-D-glucamine, is a widely adopted counterion for markedly improving drug solubility. It is an amino sugar originating from sorbitol, with a pKa value of around 9.6.
Chemical Properties
| Melting point | 129-131.5 °C (lit.) |
| alpha | -16.5 º (c=10, H2O, on dry sub) |
| Boiling point | 331.88°C (rough estimate) |
| density | 1.2669 (rough estimate) |
| refractive index | -16.5 ° (C=2, H2O) |
| RTECS | LZ4295770 |
| storage temp. | 2-8°C |
| solubility | H2O: 0.1 g/mL, clear, colorless |
| form | Crystalline Powder |
| pka | pKa 9.39(H2O,t =30.0,I=0.05N2)(Approximate) |
| color | White to almost white |
| PH | 11 (10g/l, H2O, 20℃) |
| optical activity | [α]20/D 16.5±0.5°, c = 2% in H2O |
| Water Solubility | 100 g/100 mL (25 ºC) |
| Sensitive | Air Sensitive & Hygroscopic |
| Merck | 14,6078 |
| BRN | 385906 |
| InChIKey | MBBZMMPHUWSWHV-VZFHVOOUSA-N |
| LogP | -3.370 (est) |
| NIST Chemistry Reference | N-methylglucamine(6284-40-8) |
| EPA Substance Registry System | Meglumine (6284-40-8) |
Safety Information
| Risk Statements | 36/37/38 |
| Safety Statements | 24/25 |
| WGK Germany | 3 |
| F | 3-10-23 |
| Autoignition Temperature | ~662 °F |
| TSCA | Yes |
| HS Code | 29221980 |
| Toxicity | LD50 orally in Rabbit: > 5000 mg/kg |
Product Application
Cosolvents and surfactants are vital excipients for contrast agents and diagnostic drugs. They solubilize poorly water‑soluble contrast components, prevent precipitation, and tune viscosity and osmolality. Surfactants stabilize micelles, suspensions and ultrasound microbubbles. Suitable blends ensure formulation stability and injection safety for CT, MRI and ultrasound contrast media.
