Product Information
TREHALOSE SG
Catalog Number : TR3090-PH0000-27SE
C.A.S. Number : 6138-23-4
Package : 1 KG
Specification
| Specification | ||
|---|---|---|
| SN | Test | SPEC |
| 1 | Identification | |
| 2 | (A)Infrared absorption spectrophotometry | The spectra exhibit similar intensities to trehalose dihydrate CRS |
| 3 | (B)Sugars | A violet colour develops at the interface |
| 4 | (C)No reducing sugars | No brown colour develops |
| 5 | Appearance of solution | Clear and colourless |
| 6 | pH | 4.5 to 6.5 |
| 7 | Specific optical rotation | [α]20D : +197° to + 201° |
| 8 | Related substances | |
| 9 | Impurities A (glucose) | Not more than 0.5% for each impurity |
| 10 | Impurities B (oligosaccharides) | Not more than 0.5% for each impurity |
| 11 | Unspecified impurities | Not more than 0.2% for each impurity |
| 12 | Total | Not more than 1.0% |
| 13 | Chlorides | Maximum 125ppm |
| 14 | Sulphates | Maximum 200ppm |
| 15 | Heavy metals | Maximum 5ppm (as Pb) |
| 16 | Soluble starch | No blue colour develops |
| 17 | Water | 9.0 % to 11.0% |
| 18 | Sulphates ash | Maximum 0.1% |
| 19 | Microbial contamination | |
| 20 | (1)Total aerobic microbial count | Not more than 100CFU/g |
| 21 | (2)Total combined yeasts and molds count | Not more than 100CFU/g |
| 22 | (3)Escherichia coli | Absence |
| 23 | (4)Salmonella | Absence |
| 24 | Bacterial endotoxins | Less than 0.6EU/g |
| 25 | Assay ,% of trehalose(on the anhydrous basis) | 99.0% to 101.0% |