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| CAS No.: | 70753-61-6 |
|---|---|
| Name: | L-Threonic acid calcium salt |
| Molecular Structure: | |
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|
|
| Formula: | C4H8 O5 . 1/2 Ca |
| Molecular Weight: | 310.271 |
| Synonyms: | Butanoicacid, 2,3,4-trihydroxy-, calcium salt (2:1), [R-(R*,S*)]-; Calcium L-threonate |
| EINECS: | 615-158-1 |
| Melting Point: | >300 ºC |
| Boiling Point: | 518.9oC at 760 mmHg |
| Flash Point: | 281.7oC |
| Solubility: | Soluble in water. Sparingly soluble in methanol. |
| Hazard Symbols: | Xi |
| Risk Codes: | 36/37/38 |
| Safety: | S22;S24/25 |
| PSA: | 183.21000 |
| LogP: | -4.64830 |
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ascorbic acid
- 70753-61-6
calcium L-threonate
| Conditions | Yield |
|---|---|
| With dihydrogen peroxide; calcium carbonate In water at 5 - 70℃; for 18h; | 94.6% |
| Stage #1: ascorbic acid With calcium carbonate In water at 0 - 5℃; Stage #2: With dihydrogen peroxide In water at 5 - 75℃; for 18h; Stage #3: With methanol In water at 20 - 50℃; for 12h; | 94.6% |
| With dihydrogen peroxide; calcium carbonate In water at 0 - 20℃; for 18h; | 85% |
- 70753-61-6
calcium L-threonate
- 21730-93-8
L-threonic acid-4-lactone
| Conditions | Yield |
|---|---|
| With oxalic acid; toluene-4-sulfonic acid In acetonitrile for 3h; Reflux; | 94% |
| With oxalic acid; toluene-4-sulfonic acid In acetonitrile Reflux; | 93% |
| Conditions | Yield |
|---|---|
| Stage #1: calcium L-threonate With hydrogen bromide; acetic acid for 24h; Stage #2: methanol Heating; | 90.2% |
| Stage #1: calcium L-threonate With hydrogen bromide In acetic acid for 24h; Stage #2: methanol In acetic acid at 20℃; for 14h; Reflux; | 90.2% |
| With hydrogen bromide 1.) acetic acid, room temperature, 24 h, 2.) boiled, 2 h; Yield given. Multistep reaction; |
- 2687-43-6
O-benzylhydoxylamine hydrochloride
- 70753-61-6
calcium L-threonate
- 97764-61-9
L-threonic acid (benzyloxy)amide
| Conditions | Yield |
|---|---|
| With sodium hydrogencarbonate; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In water for 4h; | 72.4% |
| Conditions | Yield |
|---|---|
| Stage #1: calcium L-threonate With Dowex 50WX4-50 In water at 70℃; for 0.5h; Stage #2: With toluene-4-sulfonic acid In acetonitrile for 1h; Heating; Stage #3: benzoyl chloride With pyridine at 20℃; for 10h; | 60% |
| Conditions | Yield |
|---|---|
| Stage #1: calcium L-threonate In water at 70℃; for 0.5h; Stage #2: With toluene-4-sulfonic acid In acetonitrile for 23h; Reflux; Stage #3: benzoyl chloride With 1H-imidazole In acetonitrile at 0 - 20℃; | 45% |
- 70753-61-6
calcium L-threonate
- 117069-13-3
(2S,3S)-2,4-Dibromo-3-hydroxy-butyric acid
| Conditions | Yield |
|---|---|
| With hydrogen bromide; acetic anhydride; acetic acid for 24h; Ambient temperature; | |
| With hydrogen bromide In acetic acid for 1.5h; Ambient temperature; |
| Conditions | Yield |
|---|---|
| With hydrogenchloride at 37℃; for 120h; |
- 70753-61-6
calcium L-threonate
- 7306-96-9
L-threonic acid
| Conditions | Yield |
|---|---|
| With Amberlite IR-120 In water at 50℃; |
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Chemistry
Molecular Structure:
Molecular Formula: C8H14CaO10
Molecular Weight: 310.2688
Product Name: L-Threonic acid calcium salt
Synonyms of L-Threonic acid calcium salt (CAS NO.70753-61-6): Calcium threonate ; Butanoic acid, 2,3,4-trihydroxy-, calcium salt (2:1), (2R,3S)- ; Butanoic acid, 2,3,4-trihydroxy-, calcium salt (2:1), (R-(R*,S*))- ; Calcium l-threonate ; Threonine, calcium salt ; UNII-HBB4YPO93U
CAS NO: 70753-61-6
Classification Code: Ca (Calcium) Compounds ; Classes of Metal Compounds ; Typical Metal Compounds
Melting point: >300 °C
Flash Point: 281.7 °C
Enthalpy of Vaporization: 91.09 kJ/mol
Boiling Point: 518.9 °C at 760 mmHg
Vapour Pressure: 6.17E-13 mmHg at 25°C
Uses
L-Threonic acid calcium salt (CAS NO.70753-61-6) is used as calcium nutrition Enhancer.
Safety Profile
Hazard Codes of L-Threonic acid calcium salt (CAS NO.70753-61-6): 
Xi
Risk Statements: 36/37/38
R36/37/38: Irritating to eyes, respiratory system and skin.
Safety Statements: 22-24/25-37/39-26
S22: Do not breathe dust.
S24/25: Avoid contact with skin and eyes.
S37/39: Wear suitable gloves and eye/face protection.
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
WGK Germany: 3