beta-D-Lactose
β-乳糖
Also known as: β-D-Lactose, beta-Lactose, 4-O-beta-D-galactopyranosyl-beta-D-glucopyranose, 4-O-beta-D-galactopyranosyl-D-glucose, Lactose, beta-, beta-D-Glucopyranose, 4-O-beta-D-galactopyranosyl-, beta-Lactose, MFCD00064521, EINECS 227-751-9
beta-D-Lactose (CAS 5965-66-2) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C12H22O11 and a molecular weight of 342.297 g/mol. It is also known as β-D-Lactose, beta-Lactose and 4-O-beta-D-galactopyranosyl-beta-D-glucopyranose. Key properties include a melting point of 224ºC, a boiling point of 667.9±55.0 °C at 760 mmHg, a density of 1.8±0.1 g/cm3 and a flash point of 357.8±31.5 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 5965-66-2
- Jingsj CID
- J-47022-5
- Molecular Formula
- C12H22O11
- Chinese Name
- β-乳糖
- Molecular Weight
- 342.297 g/mol
- Category
- Organic Compounds
- Last updated
- 8/21/2026
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Request a quotePhysicochemical Properties
| Melting Point | 224ºC |
|---|---|
| Boiling Point | 667.9±55.0 °C at 760 mmHg |
| Density | 1.8±0.1 g/cm3 |
| Flash Point | 357.8±31.5 °C |
Frequently Asked Questions
What is the CAS number of beta-D-Lactose?
The CAS number of beta-D-Lactose is 5965-66-2.
What are the molecular formula and molecular weight of beta-D-Lactose?
beta-D-Lactose has molecular formula C12H22O11 and molecular weight 342.297 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "beta-D-Lactose (CAS 5965-66-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-47022-5 (accessed 2026-10-24).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.