DL-Apfels?ure
- IUPACName：2-hydroxybutanedioic acid
- CAS Registry Number: 6915-15-7
- Molekulargewicht：134.09
1. Namen und Bezeichner
- 1.1 Produktname
- DL-Apfels?ure
- 1.2 Synonyme
(±)-2-Hydroxysuccins?ure, DL-Hydroxybutandis?ure, DL-Malic acid, DL-Apfels?ure
- 1.3 CAS Registry Number
- 6915-15-7
- 1.4 CID
- 525
- 1.5 EINECS-Nummer
- 210-514-9
- 1.6 Summenformel
- HO2CCH2CH(OH)CO2H (isomer)
- 1.7 Inchi
- InChI=1S/C4H6O5/c5-2(4(8)9)1-3(6)7/h2,5H,1H2,(H,6,7)(H,8,9)
- 1.8 InchiKey
- BJEPYKJPYRNKOW-UHFFFAOYSA-N
- 1.9 Kanonisch SMILES
- C(C(C(=O)O)O)C(=O)O
- 1.10 Isomere SMILES
- C(C(C(=O)O)O)C(=O)O
2. Eigenschaften
- 2.1 Dichte
- 1.641
- 2.2 Schmelzpunkt
- 130-132℃
- 2.3 Siedepunkt
- 306.4°C at 760 mmHg
- 2.4 Brechungsindex
- 1.3920 (estimate)
- 2.5 Blitzpunkt
- 203℃
- 2.6 PSA
- 94.83000
- 2.7 logP
- -1.09340
- 2.8 Löslich
- methanol: 0.1?g/mL, clear, colorless
- 2.9 Dampf
- 4.6 (vs air)
- 2.10 PH
- pH of a 0.001% aqueous solution is 3.80, that of 0.1% solution is 2.80, and that of a 1.0% solution is 2.34
- 2.11 pKa
- 3.4(at 25℃)
3. Sicherheit und Handhabung
- 3.1 Gefahrensymbole
- Xi;
- 3.2 Risiko-Codes
- R22;R34;R42/43
- 3.3 Gefahrenbeschreibung
- H319
- 3.4 WGK Deutschland
- 1
- 3.5 RTECS
- ON7175000
4. SDB-Informationen
2.Hazard identification
2.1 Classification of the substance or mixture
Eye irritation, Category 2
2.2 GHS label elements, including precautionary statements
| Pictogram(s) |  |
| Signal word | Warning |
| Hazard statement(s) | H319 Causes serious eye irritation |
| Precautionary statement(s) | |
| Prevention | P264 Wash ... thoroughly after handling. P280 Wear protective gloves/protective clothing/eye protection/face protection. |
| Response | P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P337+P313 If eye irritation persists: Get medical advice/attention. |
| Storage | none |
| Disposal | none |
2.3 Other hazards which do not result in classification
none
6. Computerchemische Daten
- Masse moléculaire: 134.08744g/mol
- Summenformel: C4H6O5
- Compound Is Canonicalized: True
- XLogP3-AA: null
- Exact Mass: 134.02152329
- Monoisotopic Mass: 134.02152329
- Complexity: 129
- Rotatable Bond Count: 3
- Hydrogen Bond Donor Count: 3
- Hydrogen Bond Acceptor Count: 5
- Topological Polar Surface Area: 94.8
- Heavy Atom Count: 9
- Defined Atom Stereocenter Count: 0
- Undefined Atom Stereocenter Count: 1
- Defined Bond Stereocenter Count: 0
- Undefined Bond Stereocenter Count: 0
- Isotope Atom Count: 0
- Covalently-Bonded Unit Count: 1
- CACTVS Substructure Key Fingerprint: AAADcYBgOAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAGgAACAAACBSggAIACAAAAgAIAACQCAIAAAAAAAAAAAFAAAABEBQAAAAAQAAFIAABAABDAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==
7. Frage zu Antwort
-
General Description Malic acid, a key organic acid found in fruits and vegetables, plays essential roles in different industries. Its versatility is highlighted by its use as a food additive and in co..
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Description Malic acid (MA) is an organic compound also known as "apple acid" and "fruit acid," commonly found in many prepared foods. It occurs naturally in apples, particularly in the skin, and othe..
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Malic acid is a colorless, odorless, crystalline substance that is highly soluble in water, methanol, ethanol, acetone, ether, and other polar solvents. It is a dibasic acid with two dissociation con..
-
As an organic compound, you can find Malic acid in things you regularly eat, such as apples. It is also found in wine and several other food sources. Is Malic acid natural? Yes, it occurs naturally in..
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9. Realisierte Produktinformationen
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