ChemicalBook > CAS DataBase List > L-Threonic acid calcium salt

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
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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)
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Safety

Hazard Codes 
Xi
Risk Statements 
36/37/38
Safety Statements 
22-24/25-37/39-26
WGK Germany 
3
HS Code 
2918195000
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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.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
380644
Product name
L-Threonic acid hemicalcium salt
Purity
>97%
Packaging
5g
Price
$217.61
Updated
2025/07/31
Sigma-Aldrich
Product number
1086877
Product name
Calcium L-Threonate
Purity
United States Pharmacopeia (USP) Reference Standard
Packaging
500mg
Price
$417
Updated
2025/07/31
TCI Chemical
Product number
T1799
Product name
Calcium L-Threonate
Purity
>98.0%(T)
Packaging
25g
Price
$37
Updated
2025/07/31
TRC
Product number
T404990
Product name
L-ThreonicAcidCalciumSalt
Packaging
100g
Price
$305
Updated
2021/12/16
Usbiological
Product number
292890
Product name
Calcium L-threonate
Packaging
100g
Price
$319
Updated
2021/12/16
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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

Ascorbic Acid

Preparation Products

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View Lastest Price from L-Threonic acid calcium salt manufacturers

ZHENGZHOU JIUYI TIME NEW MATERIALS CO,.LTD
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
Shaanxi Xianhe Biotech Co., Ltd
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
WUHAN FORTUNA CHEMICAL CO., LTD
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

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  • L-Threonic acid calcium salt, (2R,3S)-2,3,4-Trihydroxybutyric acid hemicalcium salt
  • L-Threonic acid hemicalcium salt,(2R,3S)-2,3,4-Trihydroxybutyric acid hemicalcium salt, L-Threonic acid calcium salt
  • L-Threonic acid calc
  • L-Threonic acid calcium sal
  • (2R,3S)-2,3,4-TRIHYDROXYBUTYRIC ACID HEMICALCIUM SALT
  • Butanoic acid, 2,3,4-trihydroxy-, calcium salt (2:1), (2R,3S)-
  • Calcium l-threonate Company Standards
  • L-Threonic acid calcium salt USP/EP/BP
  • Calcium L-Threonat
  • Calcium l-threglycoate
  • L-calcium threonate
  • Calcium threonate
  • Threonic acid calcium salt
  • Calcium L-Threonate, ≥ 98.0%
  • Ascorbic Acid impurity 8(Calcium salt)
  • <sc>L</sc>-Threonic acid hemicalcium salt
  • 70753-61-6
  • 70753-61-5
  • C8H14CaO10H2O
  • C8H14CaO10
  • Typical Metal Compounds
  • Classes of Metal Compounds
  • Ca (Calcium) Compounds
  • Carbohydrate Synthesis
  • Monosaccharides
  • Specialty Synthesis
  • Ca (Calcium) Compounds
  • Classes of Metal Compounds
  • Typical Metal Compounds
  • 70753-61-6