Enzymes & Microbes
REACH
Beta-galactosidase
CAS Number
9031-11-2
EC Number
232-864-1
What is Beta-galactosidase?
Beta-galactosidase (CAS 9031-11-2) is an enzyme that catalyzes the hydrolysis of lactose into glucose and galactose. Also marketed as Lactozym® Pure.
Where is Beta-galactosidase used?
- Dairy: lactose-free milk, yogurt and cheese
- Pharmaceuticals: lactose-intolerance therapies and processing aid in oral dosage forms
- Biotechnology: reporter enzyme in gene expression assays and cell-based screening
- Whey-based products: converts lactose to more fermentable sugars
- It enables lactose reduction in dairy products and supports downstream bioprocessing.
Good to know: Food-grade and pharmaceutical-grade specifications are available, with grades conforming to FCC and USP standards for regulated manufacturing.
Commercial specifications
- Activity units vary by application
Other Names (Synonyms)
beta-D-galactopyranose|β-galactosidase|Lactozym® pure|(2R,3R,4S,5R,6R)-6-(hydroxymethyl)oxane-2,3,4,5-tetrol
What are the physical properties of Beta-galactosidase?
Melting Point 100 °C
Boiling Point 100 °C(Press: 800 Torr)
Density 1.14 g/cm³ @ Temp: 4 °C
Color slightly yellow
Form powder
Water Solubility Soluble in water
pH 7.3-7.7
How is Beta-galactosidase classified and handled safely? Learn More
Danger
GHS08· Health Hazard
Hazard Statements
H334 May cause allergy or asthma symptoms or breathing difficulties if inhaled
Precautionary Statements
P233 Keep container tightly closed.
P260 Do not breathe dust/fume/gas/mist/vapours/spray.
P271 Use only outdoors or in a well-ventilated area.
P284 In case of inadequate ventilation wear respiratory protection.
Which trade and regulatory codes apply to Beta-galactosidase?
HS Code 35079090
Storage Class 12 - Non Combustible Liquids
WGK (Germany) 3