Beta-cyclodextrin

Appearance: White, odorless, fine crystal powder

Assay: 98.0% -101.0% (on anhydrous basis)

Clarity: clear and colorless (0.2g in 20 ml of water)

Identification: Conforms to the spectrum of the Reference Standard (KBr)

Identification: In the chromatograms obtained with the sample solution, the major peak should have the same RT as that of the standard preparation

Turbidity: Not more than 2.5NTU (2% w/v in water, t = 30ºC)

Specific Optical Rotation: Not less than +160° and not more than +164°

 (10 mg/ml; water; 20 °C; 589 nm)

 L.O.I.:14.0%max.

Residue on ignition     : 0.1%max.

Chloride: 0.018%max.

Heavy metals: 5ppm max.

Aerobic Microorganisms: Not more than 1000cfu/g

Escherichia coli: nil

Salmonella sp.: nil