Product Description of L-Threonic Acid Magnesium Salt CAS#778571-57-6
L-Threonic acid magnesium salt, also known as magnesium L-threonate, has the molecular formula C₈H₁₄MgO₁₀ and a molecular weight of 294.50. It appears as white or off-white, odorless fine powder under normal-temperature conditions. This water-soluble organic magnesium compound consists of magnesium ions and two L-threonate anions, delivering good biocompatibility. It dissolves well in water while showing low solubility in most non-polar organic solvents.
Derived from the metabolite of vitamin C, this compound stands out for its unique capability to cross the blood-brain barrier and elevate magnesium concentration in brain tissue. Compared with conventional magnesium salts, it brings mild gastrointestinal irritation without obvious laxative effect.
L-Threonic Acid Magnesium Salt Chemical Properties
| Melting point | >300 °C |
| Boiling point | 518.9 °C at 760 mmHg |
| density | 1.36±0.1 g/cm³ |
| refractive index | n20/D 1.5 (c=1, H₂O) |
| storage temp. | Sealed, 2-8 °C, protect from moisture |
| solubility | Freely soluble in water; insoluble in methanol, ethanol, ether |
| form | Powder |
| color | White to off-white |
| BRN | 61836488 |
| InChI | InChI=1S/2C4H8O5.Mg/c2*5-1-2(6)3(7)4(8)9;/h2*2-3,5-7H,1H2,(H,8,9);/q;;+2/p-2/t2*2-,3+;/m00./s1 |
| InChIKey | YVJOHOWNFPQSPP-BALCVSAKSA-L |
| CAS DataBase Reference | 778571-57-6 (anhydrous); 500304-76-7 (monohydrate) |
| Hazard Codes | Xi |
| Risk Statements | R36/37/38 |
| Safety Statements | S22 ; S24/25 |
| RIDADR | Not classified as dangerous goods for transport |
| WGK Germany | 3 |
| HazardClass | Not applicable |
| HS Code | 2918.19.9090 / 2918.16.0090 |
Product Application of L-Threonic Acid Magnesium Salt CAS#778571-57-6
As an approved magnesium-source nutritional fortifier, this compound complies with China’s GB14880 food-additive standard and FDA food-material regulations. It can be added into qualified milk-powder and beverage products to supplement dietary magnesium.
This organic magnesium salt has unique transmembrane transport capacity. Unlike ordinary magnesium supplements, it can cross the blood-brain barrier and increase magnesium levels in brain tissue. Therefore, it is widely used as a functional raw material for nutritional products and healthcare formulations focused on memory retention, concentration support and cognitive wellness.
