L-Threonic acid calcium salt
- Product Name
- L-Threonic acid calcium salt
- CAS No.
- 70753-61-6
- Chemical Name
- L-Threonic acid calcium salt
- Synonyms
- CALCIUM L-THREONATE;L-Threonic Acid Calcium;L-sutangsuangai;Calcium threonate;Calcium L-Threonat;L-calcium threonate;L-Threonic acid calc;Calcium l-threglycoate;Threonic acid calcium salt;L-Threonic acid calcium sal
- CBNumber
- CB3489736
- Molecular Formula
- C8H14CaO10
- Formula Weight
- 310.27
- MOL File
- 70753-61-6.mol
L-Threonic acid calcium salt Property
- Melting point:
- >300 °C(lit.)
- alpha
- 16 º (c=1, H2O)
- refractive index
- 15 ° (C=1, H2O)
- storage temp.
- Inert atmosphere,Room Temperature
- solubility
- DMSO (Slightly), Water (Slightly, Heated)
- form
- Powder
- color
- Pale Brown
- optical activity
- [α]20/D +16°, c = 1 in H2O
- Water Solubility
- Soluble in water. Sparingly soluble in methanol.
- BRN
- 5166008
- InChI
- InChI=1/2C4H8O5.Ca.H2O/c2*5-1-2(6)3(7)4(8)9;;/h2*2-3,5-7H,1H2,(H,8,9);;1H2/q;;+2;/p-2/t2*2-,3+;;/s3
- InChIKey
- ZJXGOFZGZFVRHK-BALCVSAKSA-L
- SMILES
- [C@@H](O)([C@@H](O)CO)C(=O)O[Ca]OC(=O)[C@H](O)[C@@H](O)CO.O |&1:0,2,13,15,r|
- CAS DataBase Reference
- 70753-61-6(CAS DataBase Reference)
Safety
- Hazard Codes
- Xi
- Risk Statements
- 36/37/38
- Safety Statements
- 22-24/25-37/39-26
- WGK Germany
- 3
- HS Code
- 2918195000
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H302Harmful if swallowed
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
- Precautionary statements
-
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.
P302+P352IF ON SKIN: wash with plenty of soap and water.
P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
N-Bromosuccinimide Price
- Product number
- 380644
- Product name
- L-Threonic acid hemicalcium salt
- Purity
- >97%
- Packaging
- 5g
- Price
- $217.61
- Updated
- 2025/07/31
- Product number
- 1086877
- Product name
- Calcium L-Threonate
- Purity
- United States Pharmacopeia (USP) Reference Standard
- Packaging
- 500mg
- Price
- $417
- Updated
- 2025/07/31
- Product number
- T1799
- Product name
- Calcium L-Threonate
- Purity
- >98.0%(T)
- Packaging
- 25g
- Price
- $37
- Updated
- 2025/07/31
- Product number
- T404990
- Product name
- L-ThreonicAcidCalciumSalt
- Packaging
- 25g
- Price
- $155
- Updated
- 2021/12/16
- Product number
- T404990
- Product name
- L-ThreonicAcidCalciumSalt
- Packaging
- 100g
- Price
- $305
- Updated
- 2021/12/16
L-Threonic acid calcium salt Chemical Properties,Usage,Production
Uses
L-Threonic acid calcium salt is the salt of L-Threonic acid, a naturally occurring compound that can be found in the leaves of Pelargonium crispum. L-Threonic acid is also the degradation product of Dehydroascorbate (DHA), a metabolite of Vitamin C (A786990).
Synthesis
50-81-7
70753-61-6
L-ascorbic acid (52.8 g, 0.3 mol) was dissolved in deionized water (410 mL). Calcium carbonate (60.06 g, 0.6 mol) was added to this solution and the reaction mixture was cooled to 0-5 °C. Under stirring, 50% (w/w) hydrogen peroxide solution (61.2 mL, 0.9 mol) was slowly added dropwise, controlling the reaction temperature at 5-20 °C. After the dropwise addition, the reaction mixture was continued to be stirred at room temperature for 16 hours. Subsequently, the reaction mixture was heated to 70-75 °C and maintained for 1 h until no oxygen was released. The reaction mixture was filtered while hot and the filter cake was washed with hot water at 50-60 °C (30 mL × 2). The filtrates were combined and concentrated under reduced pressure to about 20 mL at 55 °C. Methanol (250 mL) was added slowly and dropwise to the warmed concentrate (about 50 °C) until the solution became turbid, and then stirred for 12 h at room temperature. The precipitate was filtered and washed with methanol (30 mL × 3). The resulting solid was dried to constant weight at 60 °C (about 3 h) to give calcium L-threonate 45.2 g in 94.6% yield. The product was characterized by IR (KBr) and 1H-NMR (D2O, 400 MHz), and the data were consistent with those reported in the literature.
References
[1] Canadian Journal of Chemistry, 2003, vol. 81, # 8, p. 937 - 960
[2] Patent: US2003/232820, 2003, A1. Location in patent: Page 16
[3] Journal of Organic Chemistry, 2016, vol. 81, # 6, p. 2302 - 2307
[4] Journal of Organic Chemistry, 1985, vol. 50, # 19, p. 3462 - 3467
[5] Helvetica Chimica Acta, 2002, vol. 85, # 12, p. 4111 - 4153
L-Threonic acid calcium salt Preparation Products And Raw materials
Raw materials
Preparation Products
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View Lastest Price from L-Threonic acid calcium salt manufacturers
- Product
- Calcium L-Threonate 70753-61-6
- Price
- US $3.00-9.00/KG
- Min. Order
- 0.1KG
- Purity
- 99%
- Supply Ability
- g-kg-tons, free sample is available
- Release date
- 2025-06-21
- Product
- Calcium L-threonate 70753-61-6
- Price
- US $0.00/kg
- Min. Order
- 1kg
- Purity
- 0.99
- Supply Ability
- 1000kg
- Release date
- 2025-04-28
- Product
- L-Threonic acid calcium salt 70753-61-6
- Price
- US $0.00/Kg/Drum
- Min. Order
- 1KG
- Purity
- 98%min
- Supply Ability
- 500kg
- Release date
- 2021-09-15