Lactose Monohydrate CAS#64044-51-5
Lactose Monohydrate (CAS# 64044-51-5) is a highly purified, crystallized form of milk sugar. It is a disaccharide composed of one molecule of glucose and one molecule of galactose.
It is widely utilized in the pharmaceutical, food, and chemical industries, and typically appears as a white crystalline powder.

Lactose monohydrate Chemical Properties
| Melting point | ~215 °C (dec.) |
| density | 1.525 |
| storage temp. | room temp |
| solubility | H2O: 0.1 g/mL, clear, colorless |
| form | Crystalline |
| Specific Gravity | 1.525 |
| color | White |
| PH | 3.5-6.0 (25℃, 0.5M in H2O) |
| Optical Rotation | [α]22/D +52.4°, c = 4.5 in H2O |
| Water Solubility | Soluble in water (warm) (0.1 g/mL), and ethanol (very slightly soluble). Insoluble in chloroform, and ether. |
| λmax | λ: 260 nm Amax: 0.02 |
| λ: 280 nm Amax: 0.02 | |
| Merck | 145343 |
| BRN | 3768231 |
| Stability: | Stable. Incompatible with strong oxidizing agents. |
| InChI | 1S/C12H22O11.H2O/c13-1-4(16)7(18)11(5(17)2-14)23-12-10(21)9(20)8(19)6(3-15)22-12;/h1,4-12,14-21H,2-3H2;1H2/t4-,5+,6+,7+,8-,9-,10+,11+,12-;/m0./s1 |
| InChIKey | HBDJFVFTHLOSDW-XBLONOLSSA-N |
| SMILES | O.OC[C@@H](O)[C@@H](O[C@@H]1O[C@H](CO)[C@H](O)[C@H](O)[C@H]1O)[C@H](O)[C@@H](O)C=O |
| LogP | -3.409 (est) |
| CAS DataBase Reference | 64044-51-5(CAS DataBase Reference) |
| NIST Chemistry Reference | Lactose monohydrate(64044-51-5) |
| EPA Substance Registry System | Lactose monohydrate (64044-51-5) |
| Hazard Codes | Xi |
| Risk Statements | 36/37/38 |
| Safety Statements | 26-36-24/25 |
| WGK Germany | 3 |
| RTECS | OD9625000 |
| F | 3 |
| TSCA | Yes |
| HS Code | 17021900 |
| Storage Class | 11 - Combustible Solids |
Product Application of Lactose Monohydrate CAS#64044-51-5
Lactose Monohydrate is used as a pharmaceutical secondary standard for quality control purposes, offering pharmaceutical laboratories and manufacturers a convenient and cost-effective alternative to preparing in-house working standards
Company Profile
Furuida (Jinan) Chemical Technology Co., Ltd., headquartered in Shandong, China, is a modern fine chemical enterprise integrating R&D, production, sales, and global services. With a strong focus on new chemical materials, the company is guided by the core values of integrity, quality, and customer-first service. Through ongoing innovation and rigorous quality management, it continues to expand its global footprint, elevate operational standards, and strengthen its brand reputation.
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Furuida's core product portfolio includes pharmaceutical intermediates and raw materials, food additives, electroplating chemicals, water treatment agents, dye auxiliaries, functional materials, titanium compounds, metal salts, catalysts, and surfactants. These products are widely applied in pharmaceuticals, electronics, coatings, rubber and plastics, fine chemicals, and water treatment. The company remains dedicated to providing its global partners with stable, cost-effective chemical products and comprehensive one-stop service solutions


