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98%min Calcium L-Threonate
Nanjing Gemsen
CAS 70753-61-6
Nanjing Gemsen’s 98% Calcium L-Threonate (CAS 70753-61-6) is a premium calcium supplement designed for optimal absorption. This white powder (also available in granule form) has a molecular formula of C8H14CaO10 and molecular weight of 310.27, with a minimum purity of 98%. It exhibits excellent solubility in water, blood, and fat, and meets strict quality standards (Pb ≤ 2 ppm, As ≤ 3 ppm, total plate count ≤ 1000 cfu/g). As a key substance in vitamin C metabolism, it enhances vitamin C absorption and supports healthy bone formation.
Calcium L-Threonate is absorbed as molecular calcium through the intestinal mucosa via passive diffusion, with a 95% absorption rate—far higher than traditional calcium supplements. It doesn’t burden the gastrointestinal tract, making it gentle on sensitive stomachs.
It increases bone calcium content, density, and strength, reversing negative calcium balance in the body. Regular use prevents calcium deficiency symptoms and supports bone health in all age groups.
Suitable for children, pregnant women, lactating mothers, and the elderly, it’s a safe calcium source with no toxic side effects. Its high bioavailability ensures effective calcium supplementation without gastrointestinal irritation.
Product Name | Calcium L-Threonate |
Appearance | White or almost White Powder |
CAS | 70753-61-6 |
Molecular Formula | C8H14CaO10 |
Molecular Weight | 310.27 |
Purity | 98%min Calcium L-Threonate |
Sample | Available |
Type | Powder & Granule |
| Items | Specifications | Test Mlethod |
| Character | White or almost white powder | USP41 |
| Loss on dry | ≤1.5% | USP41<731> |
| Calcium L-threonate% | ≥98.0% | titration |
| Specific rotation | +13.0°~+16.0° | USP41<781> |
| Water insoluble | ≤0.1% | USP41 |
| PH | 6.0-8.0 | GB/T9724 |
| Pb | ≤2ppm | USP41<251> |
| AS | ≤3ppm | USP41<211> |
| Fe | ≤100ppm | USP41<241> |
| Cd | ≤1ppm | USP41<231> |
| Hg | ≤0.5ppm | USP41<261> |
| Total Plate Count | ≤1000cfu/g | USP41<2021>/<2022> |
| Total Yeast&Mold | ≤100cfu/g | USP41<2021>/<2022> |
| Staphylococcus aureus | Negative | USP41<2021>/<2022> |
| E. Coliforms | Negative | USP41<2021>/<2022> |
| Salmonella | Negative | USP41<2021>/<2022> |
| Bulk Density | 0.2g/ml-0.4g/ml | USP41<616> |
| Tap Density | 0.45g/ml-0.70g/ml | USP41<616> |
Produce tablets or capsules (recommended dosage: 500-1000 mg per serving) for daily calcium intake. It’s easily formulated into solid oral dosage forms.
Mix 2-3 grams of Calcium L-Threonate powder into milk, juice, or smoothies for direct consumption.
Add 0.5-2% to dairy products, plant-based milks, or functional beverages to boost calcium content without affecting taste or texture.
Incorporate into prenatal or geriatric nutritional formulas to meet the increased calcium needs of these populations.
Unlike calcium carbonate or citrate, Calcium L-Threonate is absorbed passively, proportional to intake, and doesn’t require stomach acid for absorption. It has a higher absorption rate (95%) and causes no gastrointestinal discomfort, making it superior for sensitive users.
Yes—they complement each other. Calcium L-Threonate promotes vitamin C absorption, while vitamin C supports collagen synthesis, further enhancing bone and skin health.
It’s generally safe for those with normal kidney function, but individuals with kidney disorders should consult a healthcare provider before use, as excessive calcium intake may affect kidney function.
Nanjing Gemsen’s 98% Calcium L-Threonate (CAS 70753-61-6) is a premium calcium supplement designed for optimal absorption. This white powder (also available in granule form) has a molecular formula of C8H14CaO10 and molecular weight of 310.27, with a minimum purity of 98%. It exhibits excellent solubility in water, blood, and fat, and meets strict quality standards (Pb ≤ 2 ppm, As ≤ 3 ppm, total plate count ≤ 1000 cfu/g). As a key substance in vitamin C metabolism, it enhances vitamin C absorption and supports healthy bone formation.
Calcium L-Threonate is absorbed as molecular calcium through the intestinal mucosa via passive diffusion, with a 95% absorption rate—far higher than traditional calcium supplements. It doesn’t burden the gastrointestinal tract, making it gentle on sensitive stomachs.
It increases bone calcium content, density, and strength, reversing negative calcium balance in the body. Regular use prevents calcium deficiency symptoms and supports bone health in all age groups.
Suitable for children, pregnant women, lactating mothers, and the elderly, it’s a safe calcium source with no toxic side effects. Its high bioavailability ensures effective calcium supplementation without gastrointestinal irritation.
Product Name | Calcium L-Threonate |
Appearance | White or almost White Powder |
CAS | 70753-61-6 |
Molecular Formula | C8H14CaO10 |
Molecular Weight | 310.27 |
Purity | 98%min Calcium L-Threonate |
Sample | Available |
Type | Powder & Granule |
| Items | Specifications | Test Mlethod |
| Character | White or almost white powder | USP41 |
| Loss on dry | ≤1.5% | USP41<731> |
| Calcium L-threonate% | ≥98.0% | titration |
| Specific rotation | +13.0°~+16.0° | USP41<781> |
| Water insoluble | ≤0.1% | USP41 |
| PH | 6.0-8.0 | GB/T9724 |
| Pb | ≤2ppm | USP41<251> |
| AS | ≤3ppm | USP41<211> |
| Fe | ≤100ppm | USP41<241> |
| Cd | ≤1ppm | USP41<231> |
| Hg | ≤0.5ppm | USP41<261> |
| Total Plate Count | ≤1000cfu/g | USP41<2021>/<2022> |
| Total Yeast&Mold | ≤100cfu/g | USP41<2021>/<2022> |
| Staphylococcus aureus | Negative | USP41<2021>/<2022> |
| E. Coliforms | Negative | USP41<2021>/<2022> |
| Salmonella | Negative | USP41<2021>/<2022> |
| Bulk Density | 0.2g/ml-0.4g/ml | USP41<616> |
| Tap Density | 0.45g/ml-0.70g/ml | USP41<616> |
Produce tablets or capsules (recommended dosage: 500-1000 mg per serving) for daily calcium intake. It’s easily formulated into solid oral dosage forms.
Mix 2-3 grams of Calcium L-Threonate powder into milk, juice, or smoothies for direct consumption.
Add 0.5-2% to dairy products, plant-based milks, or functional beverages to boost calcium content without affecting taste or texture.
Incorporate into prenatal or geriatric nutritional formulas to meet the increased calcium needs of these populations.
Unlike calcium carbonate or citrate, Calcium L-Threonate is absorbed passively, proportional to intake, and doesn’t require stomach acid for absorption. It has a higher absorption rate (95%) and causes no gastrointestinal discomfort, making it superior for sensitive users.
Yes—they complement each other. Calcium L-Threonate promotes vitamin C absorption, while vitamin C supports collagen synthesis, further enhancing bone and skin health.
It’s generally safe for those with normal kidney function, but individuals with kidney disorders should consult a healthcare provider before use, as excessive calcium intake may affect kidney function.