Synonym	Deacetylated chitin, Poly(D-glucosamine)
Common Use	Chitosan is labeled with rhodamine, Ex/Em wavelength 552/575 nm. The rhodamine used in all of polysaccharide products is 5/6-carboxy-tetramethyl-rhodamine, (5/6-TAMRA). Purity: >95% powder.
Structure
Molecular Weight	200 kDa
Fluorophores	TAMRA
Degree of Substitution	1 mol % substitution and at least one dye molecule per polymer.
Excitation Wavelength	552 nm
Emission Wavelength	575 nm

Q & A

Q: What are the storage conditions for the product?

A: Our products could be sensitive to temperature, light or moisture. They should be stored in a freezer of -15°C or colder immediately upon arrival. Our products are in dry powder form except those having very low molecular weight. Vials should be kept away from light particularly UV light. Before vials can be opened, please allow vials and products to equilibrate to room temperature to avoid absorbing moisture. For long term storage, we recommend that our products are stored as a dry powder form and not in any type of solutions. If you have to store products in a solution, be sure that the solvent is degassed and dried.

Q: Do you have any guide recommend to aliquot/rebottle the product?

A: 1. Allow vials and products to thaw and equilibrate to room temperature;
2. Glove box or any other dry packaging areas with access to inert gas (e.g. argon or nitrogen) should be used to aliquot and rebottle;
3. Open vials and quickly repackage;
4. Flush all vials with argon or nitrogen – caution: adjust gas flow so that dry powders will not be blown away;
5. Tightly cap all vials and wrap with parafilm;
6. Store at or below -15°C.

Ask a Question

Customer Reviews