DL-Alanin

DL-Alanine Struktur
302-72-7
CAS-Nr.
302-72-7
Bezeichnung:
DL-Alanin
Englisch Name:
DL-Alanine
Synonyma:
DL-Ala-OH;FEMA 3818;DL-ALA;DL-Alanin;DL-ALANINE;H-DL-ALA-OH;ALANINE, DL-;(r,s)-alanine;DL-Alanine 0.1;ALANINE, alpha
CBNumber:
CB9143191
Summenformel:
C3H7NO2
Molgewicht:
89.09
MOL-Datei:
302-72-7.mol

DL-Alanin Eigenschaften

Schmelzpunkt:
289 °C (dec.) (lit.)
Siedepunkt:
212.9±23.0 °C(Predicted)
Dichte
1,424 g/cm3
FEMA 
3818 | DL-ALANINE
Brechungsindex
1.4650 (estimate)
storage temp. 
Keep in dark place,Inert atmosphere,Room temperature
Löslichkeit
H2O: soluble
Aggregatzustand
Crystals or Crystalline Powder
pka
pK1 2.35; pK2 9.87(at 25℃)
Farbe
White
Geruch (Odor)
at 100.00 %. odorless
Geruchsart
odorless
Wasserlöslichkeit
156 g/L (20 ºC)
Merck 
14,204
JECFA Number
1437
BRN 
635807
Stabilität:
Stable. Incompatible with strong oxidizing agents.
LogP
-2.85 at 25℃
CAS Datenbank
302-72-7(CAS DataBase Reference)
NIST chemische Informationen
DL-Alanine(302-72-7)
EPA chemische Informationen
Alanine (302-72-7)
Sicherheit
  • Risiko- und Sicherheitserklärung
  • Gefahreninformationscode (GHS)
Kennzeichnung gefährlicher Xi
R-Sätze: 36/37/38
S-Sätze: 22-24/25-36-26
WGK Germany  3
RTECS-Nr. AY2980000
TSCA  Yes
HS Code  29224995
Bildanzeige (GHS) GHS hazard pictograms
Alarmwort Warnung
Gefahrenhinweise
Code Gefahrenhinweise Gefahrenklasse Abteilung Alarmwort Symbol P-Code
H315 Verursacht Hautreizungen. Hautreizung Kategorie 2 Warnung P264, P280, P302+P352, P321,P332+P313, P362
H319 Verursacht schwere Augenreizung. Schwere Augenreizung Kategorie 2 Warnung P264, P280, P305+P351+P338,P337+P313P
H335 Kann die Atemwege reizen. Spezifische Zielorgan-Toxizität (einmalige Exposition) Kategorie 3 (Atemwegsreizung) Warnung
Sicherheit
P261 Einatmen von Staub vermeiden.
P271 Nur im Freien oder in gut belüfteten Räumen verwenden.
P280 Schutzhandschuhe/Schutzkleidung/Augenschutz tragen.

DL-Alanin Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:

R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.

S-Sätze Betriebsanweisung:

S22:Staub nicht einatmen.
S24/25:Berührung mit den Augen und der Haut vermeiden.
S36:DE: Bei der Arbeit geeignete Schutzkleidung tragen.
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.

Beschreibung

DL-Alanine is the racemic modification of alanine, which si a non-essential amino acid that occurs in high levels in its free state in plasma. DL-Alanine is a colorless to white needle crystal or crystalline powder that is odorless and has a peculiarly sweet taste. It begins to sublime above 200℃ and the melting point is 297℃ (decomposition). It dissolves readily in water(25℃, 17%), slightly in ethanol and insoluble in ether. DL-Alanine is mainly used in food processing industry for nutritional supplements and seasoning, and also used in pharmaceutical industry. DL-alanine could enhance the effect of chemical seasoning sauce. Wiith a special sweet taste, DL-Alanine can improve the artificial sweetener, the acidity of organic acid and the flavor of vinegar. With sour, DL-Alanine could make salt fast tasty, to improve the effect of pickled vegetables and pichles. It could shorten the curing time and improve the flavor. As sour correction agent and buffer in synthesis of wine and drink, DL-Alanine could prevent foaming wine aging and reduce the smell of yeast. With antioxidant properties, DL-Alanine could be used in a vatiety of food processing, such as oil, egg yolk sauce, grains, soy sauce dipping food, rice bran preservend food.

Chemische Eigenschaften

DL-Alanine is a colorless to white odorless needle crystal or crystalline powder with a sweet taste. Taste threshold 0.06%. Those recrystallized from water-ethanol liquid are orthorhombic crystals, and those recrystallized from water are needle crystals or crystalline powders. The PH value of 5% aqueous solution is 5.5~7.0. It melts and decomposes at about 295~300°C. Chemical properties is stable. In case of nitrous acid, it can be transformed into L-lactic acid. Soluble in water (16.72g/100ml, 25°C). Slightly soluble in ethanol. No optical activity.

Occurrence

Natural constituent of protein in plants and animals; found in apple, beef, carob, pea, soybean, wine and zucchini

Verwenden

DL-Alanine is used in mixed ligand (chelate) studies with transition metals such as Cu(II), Zn(ll) and Cd(ll). It is a functional component in the alanine cycle which regulates the level of alanine aminotransferases which can be used as a diagnostic tool to predict type II diabetes. It is used as a model reagent for development of amino acid racemic resolution techniques.

synthetische

Anthrobacter oxydans HAP-1 hyper produces DL-alanine in a nongrowth-associated manner.

Definition

ChEBI: DL-Alanine is an alpha-amino acid that consists of propionic acid bearing an amino substituent at position 2. It has a role as a fundamental metabolite. It is functionally related to a propionic acid. It is a conjugate base of an alaninium. It is a conjugate acid of an alaninate. It is a tautomer of an alanine zwitterion.

Einzelnachweise

1.https://www.ncbi.nlm.nih.gov/mesh/68000409
2.https://www.ulprospector.com/en/na/Food/Detail/16049/381925/DL-Alanine
3.http://www.sinogel.com/products_detail_en/id/3.html
4.http://www.hugestone-china.com/product_detail/id/63.html

DL-Alanin Upstream-Materialien And Downstream Produkte

Upstream-Materialien

Downstream Produkte


DL-Alanin Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

Global( 705)Lieferanten
Firmenname Telefon E-Mail Land Produktkatalog Edge Rate
DONBOO AMINO ACID COMPANY
+8613063595538
donboo@donboo.com China 9365 58
Hebei Mojin Biotechnology Co., Ltd
+8613288715578
sales@hbmojin.com China 12452 58
Zibo Hangyu Biotechnology Development Co., Ltd
+86-0533-2185556 +8617865335152
Mandy@hangyubiotech.com China 11001 58
Capot Chemical Co.,Ltd.
571-85586718 +8613336195806
sales@capotchem.com China 29797 60
Shanghai Daken Advanced Materials Co.,Ltd
+86-371-66670886
info@dakenam.com China 14936 58
Shanghai Bojing Chemical Co.,Ltd.
+86-86-02137122233 +8613795318958
bj1@bj-chem.com China 297 55
Henan Tianfu Chemical Co.,Ltd.
+86-0371-55170693 +86-19937530512
info@tianfuchem.com China 21700 55
Shanghai Yingrui Biopharma Co., Ltd.
+86-21-33585366 - 03@
sales03@shyrchem.com CHINA 738 60
ATK CHEMICAL COMPANY LIMITED
+undefined-21-51877795
ivan@atkchemical.com China 32480 60
career henan chemical co
+86-0371-86658258
sales@coreychem.com China 29914 58

302-72-7(DL-Alanin)Verwandte Suche:


  • (R,S)-2-Amino-propionicacid
  • (r,s)-alanine
  • ALANINE, alpha
  • DL-Alanine 0.1
  • DL-Alanine Vetec(TM) reagent grade, 98%
  • DL-Alanine ,98.5%
  • DL-Alanine, 99% 100GR
  • DL-2-Aminopropionic Acid H-DL-Ala-OH
  • dl-alpha-Aminopropionic acid
  • dl-alpha-aminopropionicacid
  • DL-Racemicalanine
  • (+/-)-2-AMINOPROPIONIC ACID
  • 2-AMINOPROPIONIC ACID
  • DL-ALANINE, >=99% (HPLC)
  • DL-Alanine≥ 99% (Titration)
  • D,L alanine alpha-alanin
  • DL-ALANINE 99+% FCC
  • DL-Alanin
  • DL-Alanine FCC
  • Dl-Alanine,>99%
  • Dl-AlanineForBiochemistry-(+/-)-2-AmiinopropionicAcid)
  • Dl-AlanineForBiochemistry99+%
  • Dl-AlanineForBiochemistry
  • DL-ALANINE (DL-AMINOPROPIONIC ACID) FOR BIOCHEMISTRY
  • AKOS BBS-00003820
  • ALANINE, DL-
  • H-DL-ALA-OH
  • DL-AMINOPROPIONIC ACID
  • DL-ALPHA-ALANINE
  • DL-ALA
  • DL-ALANINE
  • DL-2-AMINOPROPANOIC ACID
  • DL-2-AMINOPROPIONIC ACID
  • dl-2-Amino propanic acid
  • dl-α-Amino propanic acid
  • DL-Alanine (1.00963)
  • DL-ALANINE extrapure CHR
  • DL-ALANINE extrapure OAS grade
  • DL-α-Aminopropanoic acid
  • Alanine, 98.5%
  • (2R)-2-ammoniopropanoate
  • DL-Alanine, 98%, for bio
  • DL-Alanine >
  • DL-Alanine(DL- -Aminopronoic acid)
  • DL-Alanine USP/EP/BP
  • Metaraminol Bitartrate Impurity 30
  • dextro,laevo-alanine
  • Hot Sale DL-2-Aminopropionic acid DL-Alanine CAS 302-72-7
  • Amino Acids DL-Alanine
  • DL-Alanine CHR
  • DL-Alanine extrapure OAS, 99.5%
  • DL-Ala-OH
  • FEMA 3818
  • Sodium 3-nitrobenzenesulphonate 127-68-4
  • 302-72-7
  • 302-77-7
  • 71261-61-8
  • 302-70-7
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