L-Apfelsure
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- CAS-Nr.
- 97-67-6
- Bezeichnung:
- L-Apfelsure
- Englisch Name:
- L-Malic acid
- Synonyma:
- L-MALIC ACID;L-Malic;(2S)-2-hydroxybutanedioic acid;L-Mailcacid;HYDROXYBUTANEDIOIC ACID;L-Gydroxybutanedioicacid;apple acid;pinguosuan;(S)-(-)-MALIC ACID;-(-)-MaL
- CBNumber:
- CB0493594
- Summenformel:
- C4H6O5
- Molgewicht:
- 134.09
- MOL-Datei:
- 97-67-6.mol
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L-Apfelsure Eigenschaften
- Schmelzpunkt:
- 101-103 °C (lit.)
- Siedepunkt:
- 167.16°C (rough estimate)
- alpha
- -2 º (c=8.5, H2O)
- Dichte
- 1.60
- chüttdichte
- 600kg/m3
- Dampfdruck
- 0Pa at 25℃
- FEMA
- 2655 | L-MALIC ACID
- Brechungsindex
- -6.5 ° (C=10, Acetone)
- Flammpunkt:
- 220 °C
- storage temp.
- Store below +30°C.
- L?slichkeit
- H2O: 0.5 M at 20 °C, clear, colorless
- Aggregatzustand
- Powder
- Wichte
- 1.595 (20/4℃)
- Farbe
- White
- PH
- 2.2 (10g/l, H2O, 20℃)
- pka
- (1) 3.46, (2) 5.10(at 25℃)
- Geruch (Odor)
- odorless
- Geruchsart
- odorless
- Biologische Quelle
- microbial
- Optische Aktivit?t
- [α]20/D 30±2°, c = 5.5% in pyridine
- Wasserl?slichkeit
- soluble
- JECFA Number
- 619
- Merck
- 14,5707
- BRN
- 1723541
- InChIKey
- BJEPYKJPYRNKOW-REOHCLBHSA-N
- LogP
- -1.68
- CAS Datenbank
- 97-67-6(CAS DataBase Reference)
- NIST chemische Informationen
- Butanedioic acid, hydroxy-, (s)-(97-67-6)
- EPA chemische Informationen
- Butanedioic acid, 2-hydroxy-, (2S)- (97-67-6)
Sicherheit
- Risiko- und Sicherheitserkl?rung
- Gefahreninformationscode (GHS)
| Kennzeichnung gef?hrlicher |
Xi |
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| R-S?tze: |
36/37/38 |
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| S-S?tze: |
26-36-37/39 |
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| WGK Germany |
3 |
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| RTECS-Nr. |
ON7175000 |
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| TSCA |
Yes |
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| HS Code |
29181980 |
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| Bildanzeige (GHS) |
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| Alarmwort |
Warnung |
| Gefahrenhinweise |
| Code |
Gefahrenhinweise |
Gefahrenklasse |
Abteilung |
Alarmwort |
Symbol |
P-Code |
| H319 |
Verursacht schwere Augenreizung. |
Schwere Augenreizung |
Kategorie 2 |
Warnung |
![GHS hazard pictograms]() src="/GHS07.jpg" width="20" height="20" /> |
P264, P280, P305+P351+P338,P337+P313P |
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| Sicherheit |
| P264 |
Nach Gebrauch gründlich waschen. |
| P264 |
Nach Gebrauch gründlich waschen. |
| P280 |
Schutzhandschuhe/Schutzkleidung/Augenschutz tragen. |
| P305+P351+P338 |
BEI KONTAKT MIT DEN AUGEN: Einige Minuten lang behutsam mit Wasser spülen. Eventuell vorhandene Kontaktlinsen nach M?glichkeit entfernen. Weiter spülen. |
| P337+P313 |
Bei anhaltender Augenreizung: ?rztlichen Rat einholen/?rztliche Hilfe hinzuziehen. |
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L-Apfelsure Chemische Eigenschaften,Einsatz,Produktion Methoden
R-S?tze Betriebsanweisung:
R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.
S-S?tze Betriebsanweisung:
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S36:DE: Bei der Arbeit geeignete Schutzkleidung tragen.
S37/39:Bei der Arbeit geeignete Schutzhandschuhe und Schutzbrille/Gesichtsschutz tragen.
Beschreibung
L-Malic acid is nearly odorless (sometimes a faint, acrid odor) with
a tart, acidic taste. It is nonpungent. May be prepared by hydration
of maleic acid; by fermentation from sugars.
Chemische Eigenschaften
clear colourless solution
Occurrence
Occurs in maple sap, apple, melon, papaya, beer, grape wine, cocoa, sake, kiwifruit and chicory root.
Verwenden
L-Malic acid is used as a food additive, Selective α-amino protecting reagent for amino acid derivatives. Versatile synthon for the preparation of chiral compounds including κ-opioid receptor agonists, 1α,25-dihydroxyvitamin D3 analogue, and phoslactomycin B.
Definition
ChEBI: An optically active form of malic acid having (S)-configuration.
synthetische
L-Malic acid can be prepared by hydration of maleic acid; by fermentation from sugar.
Allgemeine Beschreibung
L-Malic acid is an organic acid that is commonly found in wine. It plays an important role in wine microbiological stability.
l?uterung methode
Crystallise S-malic acid (charcoal) from ethyl acetate/pet ether (b 55-56o), keeping the temperature below 65o. Or dissolve it by refluxing in fifteen parts of anhydrous diethyl ether, decant, concentrate to one-third volume and crystallise it at 0o, repeatedly to constant melting point. [Beilstein 3 IV 1123.]
L-Apfelsure Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Downstream Produkte
L-Apfelsure Anbieter Lieferant Produzent Hersteller Vertrieb H?ndler.
Global( 726)Lieferanten
97-67-6(L-Apfelsure)Verwandte Suche:
- L(-)-Malic acid, 30 wt% aqueous solution
- Butanedioic acid, hydroxy-, (2S)-
- L-MALIC ACID L
- L-LYSINEMONOHCL
- L-MALIC ACID / (S)-(-)-HYDROXYSUCCINIC ACID
- (S)-(-)-2-Hydroxysuccinic acid, L-Hydroxybutanedioic acid
- S-2-Hydroxybutanedioic acid
- )-Malic ac
- L-()-Malic ac
- L(-)-Malic acid, 99% 25GR
- L-2-Hydroxybutanedioic acid
- L-(-)-MALIC ACID FOR RESOLUTION OF RACEM
- L-(-)-Malic acid 95-100% (enzyMatic)
- L-(-)-Malic acid 97%, optical purity ee: 99% (GLC)
- L-(-)-Malic acid ReagentPlus(R), >=99%
- L-(-)-Malic Acid, 97+%
- L-(-)-Malicacid,98+%
- L-(-)-Malicacid,99%
- L-(-)-ALIC ACID, AQUEOUS SOLUTION
- L-(-)-Malic acid Vetec(TM) reagent grade, 97%
- malic acid ,Hydrozybutanedioic acid
- (S)-(-)-2-Hydroxysuccinic acid
L-Hydroxybutanedioic acid
Apple acid
L-(-)-Apple Acid
- (S)-(-)-HYDROXYSUCCINIC ACID
- (S)-HYDROXYSUCCINIC ACID
- (S)-HYDROXYBUTANEDIOIC ACID
- (S)-2-HYDROXYBUTANEDICARBOXYLIC ACID
- S(-)-2-HYDROXYSUCCINIC ACID
- NATURAL APPLE ACID
- L-HYDROXYSUCCINIC ACID
- L-HYDROXYBUTANEDIOIC ACID
- L-(-)-APPLE ACID
- L-APPLE ACID
- L(-)-MALATE
- (-)-L-MALIC ACID
- L-(-)-MALIC ACID
- MALIC ACID, L-(-)-
- 2-HYDROXYSYCCINIC ACID
- 1-HYDROXYSUCCINIC ACID
- L-Maleic Acid
- L(+-)MALIC ACID FREE ACID INSECT CELL*CU LTURE TESTE
- L-MALIC ACID FREE ACID CRYSTALLINE
- L(-)MALIC ACID FREE ACID PLANT CELL*CULT URE TESTED
- L (-) MALIC ACID SIGMAULTRA
- L-MALIC ACID 99+% FCC
- L-MALIC ACID BIOTECH GRADE 99.5%
- Butanedioicacid,hydroxy-,(S)-
- hydroxy-,(S)-Butanedioicacid
- l-(ii)-malicacid
- L-(-)-MalicAcid>
- CultureSure L(-)-Malic Acid, Animal-derived-free
- -(-)-MaL
- (S)-malicaci
- L-(-)-Malic Acid ISO 9001：2015 REACH
- N'1-{4-[(6,7-dimethoxyquinolin-4-yl)oxy]phenyl}-N1-(4-fluorophenyl)cyclopropane-1,1-dicarboxamide
- L-malic acidQ: What is
L-malic acid Q: What is the CAS Number of
L-malic acid Q: What is the storage condition of
L-malic acid Q: What are the applications of
L-malic acid
- L-(-)-Malic acid, CP
- Butanedioic acid, 2-hydroxy-, (2S)-
- L-Gydroxybutanedioicacid
