| Quantity | Price | Save |
|---|---|---|
| XXXXX | XXXXX | 0.00% |
| XXXXX | XXXXX | 5.00% |
| XXXXX | XXXXX | 8.00% |
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$0.00/Gm
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| Items | Specification | Test Methods |
|---|---|---|
| Physical Analysis | ||
| Description | Powder | Organoleptic |
| Color | White | Organoleptic |
| Odor | Odorless | Organoleptic |
| Taste | Bitter | Organoleptic |
| Mesh size | NLT 95% passes through #40 mesh | USP<786> |
| Loss on drying | NMT 10.0% w/w | USP<731> |
| Residue on ignition | NMT 0.1% | USP<281> |
| Assay | 98.5% to 101.0% | USP |
| Identification A | Conforms to the USP Caffeine RS | IR |
| Identification B | Corresponds to the standard preparation obtained in the assay | USP |
| Appearance of Solution | Clear and colourless | USP |
| Sulphate | NMT 500 ppm | USP<221> |
| Related Substances | NMT 0.10% (Total Impurities) | USP |
| Acidity | NMT 0.2 ml of 0.01 M Sodium Hydroxide | USP |
| Other alkaloids | No precipitate is formed | USP |
| Melting range | 235 to 237.5 °C | USP<741> |
| Readily carbonisable substances | Passes test | USP |
| pH | 5.5 - 6.5 | USP<791> |
| Total Heavy Metals | ||
| Total Heavy Metals | NMT 10 ppm | USP<231> |
| Lead | NMT 0.5 ppm | USP<232> |
| Arsenic | NMT 1.5 ppm | USP<232> |
| Mercury | NMT 0.2 ppm | USP<232> |
| Cadmium | NMT 0.5 ppm | USP<232> |
| Microbiology Test | ||
| Total Plate count | NMT 10,000 cfu/g | USP<2021> |
| Yeast & Mold | NMT 1000 cfu/g | USP<2021> |
| E. coli | Negative | USP<2022> |
| Salmonella | Negative | USP<2022> |
| Staphylococcus aureus | Negative | USP<2022> |
| Coliforms | NMT 10 cfu/g | USP<2021> |
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