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Pharmaceutical Lactose CAS 10039-26-6
1.Standard: BP/USP/CP
2.Content: 99%
3.Packing: 25kgs/bag
4.Function: pharma carrier or excipient
5.CAS NO : 63-42-3
6.Specification: monohydrate, anhydrouse
Pharmaceutical grade lactose CAS 10039-26-6 is produced by concentrating whey or permeate (a co-product of whey protein concentrate production) to over saturate the lactose, then removing, refining, drying and milling the lactose crystals. Pharmaceutical grade lactose is produced to meet rigid specifications, such as specific form and size distribution-monohydrate, crystalline, 40 mesh to 325 mesh, and a spray-dried mixture of crystalline and amorphous lactose for all applications. All products meet the requirements of the U.S., European and Japanese Pharmacopeia.

| Typical Microbiological Analysis: | |
| Standard plate count | <100/g |
| E. coli | Negative |
| Salmonella | Negative |
| Coagulase-positive staphylococci | Negative |
| Penicillin residues | Negative |
| Pesticide residues | Negative |
| Other Characteristics: | |
| Acidity or alkalinity | 0.1 ml of 0.1N NaOH |
Clarity and color (10% 1cm at 400nm) | 0.01 |
| Heavy metals | <5.0ppm |
| Loss on drying | 0.3% |
| Protein and Light Absorbing Impurities: | |
| At 210-220 nm | 0.06 |
| At 210-300 nm | 0.02 |
| Residue on ignition | 0.1% |
| Specific rotation | +54.5° to +55.9° |
| Bulk density, tapped | 0.70-0.90g/ml (depends upon mesh size specifications) |
| Appearance | Pure white, crystalline, free-flowing powder |
| Solution | Clear, colorless, odorless |
| Flavor | Slightly sweet |

Lactose CAS 10039-26-6 is a naturally occurring simple carbohydrate, or sugar, found only in the milk of mammals. For this reason, it is also commonly referred to as "milk sugar." All commercial lactose is obtained from the milk of cows as a by-product of the dairy industry. Chemically, lactose is the disaccharide of the simple sugars D-galactose and D-glucose (Figure 1). In other words, the lactose molecule comprises one molecule of D-galactose chemically linked to one molecule of D-glucose. Lactose exists in two isomeric forms, known as alpha and beta (designated a-lactose and b-lactose).
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