L-Valin
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L-Valin Eigenschaften
- Schmelzpunkt:
- 295-300 °C (subl.) (lit.)
- alpha
- 28 º (c=8, 6N HCl)
- Siedepunkt:
- 213.6±23.0 °C(Predicted)
- chüttdichte
- 400kg/m3
- Dichte
- 1.23
- Brechungsindex
- 28 ° (C=8, HCl)
- storage temp.
- 2-8°C
- L?slichkeit
- H2O: 25 mg/mL
- Aggregatzustand
- powder
- pka
- 2.29(at 25℃)
- Farbe
- White
- PH
- 5.5-6.5 (100g/l, H2O, 20℃)
- Geruch (Odor)
- odorless
- Geruchsart
- odorless
- Biologische Quelle
- non-animal source
- Optische Aktivit?t
- [α]20/D +27.0±0.5°, c = 5% in 5 M HCl
- Wasserl?slichkeit
- 85 g/L (20 ºC)
- maximale Wellenl?nge (λmax)
- λ: 260 nm Amax: 0.15
λ: 280 nm Amax: 0.1
- Merck
- 14,9909
- BRN
- 1721136
- InChIKey
- KZSNJWFQEVHDMF-BYPYZUCNSA-N
- LogP
- 0.29
- CAS Datenbank
- 72-18-4(CAS DataBase Reference)
- NIST chemische Informationen
- Valine(72-18-4)
- EPA chemische Informationen
- L-Valine (72-18-4)
Sicherheit
- Risiko- und Sicherheitserkl?rung
- Gefahreninformationscode (GHS)
Kennzeichnung gef?hrlicher | Xn | ||
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R-S?tze: | 40 | ||
S-S?tze: | 24/25-36-22 | ||
WGK Germany | 3 | ||
RTECS-Nr. | YV9361000 | ||
TSCA | Yes | ||
HS Code | 29224995 | ||
Giftige Stoffe Daten | 72-18-4(Hazardous Substances Data) | ||
Toxizit?t | LD50 intraperitoneal in rat: 5390mg/kg |
Bildanzeige (GHS) | |||||||||||||||||||||||||||||
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Sicherheit |
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L-Valin Chemische Eigenschaften,Einsatz,Produktion Methoden
R-S?tze Betriebsanweisung:
R40:Verdacht auf krebserzeugende Wirkung.S-S?tze Betriebsanweisung:
S24/25:Berührung mit den Augen und der Haut vermeiden.S36:DE: Bei der Arbeit geeignete Schutzkleidung tragen.
S22:Staub nicht einatmen.
Beschreibung
Valine (abbreviated as Val or V) is an α-amino acid with the chemical formula HO2CCH(NH2)CH(CH3)2. L-Valine is one of 20 proteinogenic amino acids. Its codons are GUU, GUC, GUA, and GUG. This essential amino acid is classified as nonpolar. Human dietary sources are any proteinaceous foods such as meats, dairy products, soy products, beans and legumes.Along with leucine and isoleucine, valine is a branched-chain amino acid. It is named after the plant valerian. In sickle-cell disease, valine substitutes for the hydrophilic amino acid glutamic acid in hemoglobin. Because valine is hydrophobic, the hemoglobin is prone to abnormal aggregation.
Chemische Eigenschaften
White or almost white, crystalline powder or colourless crystals, soluble in water, very slightly soluble in alcohol.Definition
ChEBI: The L-enantiomer of valine.Biosynthese
Valine is an essential amino acid, hence it must be ingested, usually as a component of proteins. It is synthesized in plants via several steps starting from pyruvic acid. The initial part of the pathway also leads to leucine. The intermediate α-ketoisovalerate undergoes reductive amination with glutamate. Enzymes involved in this biosynthesis include :Acetolactate synthase
Acetohydroxy acid isomeroreductase
Dihydroxyacid dehydratase
Valine aminotransferase.
Allgemeine Beschreibung
Valine is an essential amino acid, involved in the biosynthesis of glutamine and alanine. Valine being a branched-chain amino acid (BCAA), maintains a balance among the BCAAs. L-Valine serves as an energy fuel.Nebenwirkungen
L-valine is a natural substance that is necessary for our health. As such, it generally does not have any side effects. However, taking large quantities of L-valine can cause fatigue, nausea, and a lack of muscle coordination.Extremely high doses of L-valine can be dangerous. Excessive levels of L-valine can cause your body to produce excess ammonia which is toxic.
Extremely high levels of L-valine can cause your skin to tingle and can lead to hallucinations.
Sicherheitsprofil
Mutation data reported. When heated to decomposition it emits toxic fumes of NOx.l?uterung methode
Crystallise L-valine from water by addition of EtOH. It sublimes at 178-188o/0.03mm with 99.3% recovery and unracemised [Gross & Gradsky J Am Chem Soc 77 1678 1955]. [Perrin J Chm Soc 3125 1958, Greenstein & Winitz The Chemistry of the Amino Acids J. Wiley, Vol 3 pp 2368-23771961, Beilstein 4 IV 2659.]L-Valin Upstream-Materialien And Downstream Produkte
Upstream-Materialien
DL- amino acids
Glucose
Hydantoin
Isobutanol
Glutaminsure
Valine
DL-Valin
Harnstoff
Cyanwasserstoff
Isobutyraldehyd
Diammoniumcarbonat
Isobutyronitril
L-Serin
L-Isoleucin
Downstream Produkte
L-Valin Anbieter Lieferant Produzent Hersteller Vertrieb H?ndler.
Global( 981)Lieferanten
Firmenname | Telefon | Land | Produktkatalog | Edge Rate | |
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Hangzhou Qiwei Pharmatech Co.,Ltd | 13282840061 |
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Hebei Chuanghai Biotechnology Co,.LTD | +86-13131129325 |
sales1@chuanghaibio.com | China | 5889 | 58 |
Suzhou Sanyi Polymer Chemical Technology Co., Ltd. | +8615571922873 |
15571922873@163.com | China | 102 | 58 |
Shaanxi Haibo Biotechnology Co., Ltd | +undefined18602966907 |
qinhe02@xaltbio.com | China | 997 | 58 |
Across Biotech Jinan Co LTD | +8613031735486 |
frank@acrossbiotech.com | China | 105 | 58 |
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admin@flanderff.com | China | 244 | 58 |
Hebei Saisier Technology Co., LTD | +86-18400010335 +86-18034520335 |
admin@hbsaisier.cn | China | 1015 | 58 |
72-18-4(L-Valin)Verwandte Suche:
Lithiumbis(trimethylsilyl)amid
Methyl-4-(4-aminophenyl)butyrat
ALTRENOGEST
DL-Valin
Isovalerians?ure
N,N-Dimethyl-phenylendiamin (p)
4-Aminobuttersure
L-Valine methyl ester hydrochloride
Glycin
Folsure
Valine
Trometamol
4-(4-Aminophenyl)butyric acid
ACETIC ACID
α,α-Dimethylphenethylbutyrat
L-2-Amino-3-methylbutan-1-ol
L-Leucin
L-Methionin
- Valine (V) Solution, 100ppm
- L-Valine Vetec(TM) reagent grade, >=98%
- (s)-2-amino-3-methylbutanoicacid
- (S)-2-Amino-3-methylbutansαure
- (s)-alpha-amino-beta-methylbutyricacid
- 2-Amino-3-methylbutyric acid
- Butanoic acid, 2-amino-3-methyl-
- Butanoic acid, 2-amino-3-methyl-, (S)-
- l-(+)-alpha-Aminoisovaleric acid
- l-alpha-amino-beta-methylbutyricacid
- L-iso-C3H7CH(NH2)COOH
- L-α-Amino-isovaleriansαure
- L-Valine >99.5%
- L-VALINE extrapure CHR
- (S)-α-Aminoisovaleric acid, L-2-Amino-3-methylbutanoic acid
- L-Valine,99%
- L-VALINERESEARCH GRADE
- L-Valine, extra pure
- L-Valine (200 mg)
- Valine, USP
- L-Valine, 99% 100GR
- (S)-α-AMino-β-Methylbutyric Acid
- L-(+)-α-AMinoisovaleric Acid
- L-α-AMino-β-Methylbutyric Acid
- L-2-Aminoisovaleric Acid H-Val-OH
- Valine Solution (V)
- (S)-(+)-VALINE FOR SYNTHESIS
- Valine (V)
- L-Valine (High Purity )
- 2,3-D2)
- L-Valine, Animal-Free
- L-VALINE BIOULTRA, >= 99.5% (NT)
- L-VALINE, REAGENT GRADE, >=98% (HPLC
- L-ValineUSP, 98.5-101.5% (Titration: anhydrous basis)
- L-Valine,99%e.e.
- (S)-(+)-VALINE
- VALINE, L-
- 2-AMINOISOVALERIC ACID
- H-L-VAL-OH
- L-2-AMINO-3-METHYLBUTANOIC ACID
- L-2-AMINO-3-METHYLBUTYRIC ACID
- L-2-AMINOISOVALERIC ACID
- L-VLA
- L-(+)-VALINE
- L-VALINE
- (S)-α-Aminoisovaleric acid
- L-Valine, FCC Grade L-2-Amino-3-methylbutyric acid, FCC Grade
- L-Valine FCC4/USP24
- L-VALINE (USP/EP/JP)
- L-VALINE, MANUFACTURING GRADE
- L-VALINE 99% CELL CULTURE REAGENT
- L-VALINE 99-105% (USP EP JP)
- L-ValineForBiochemistry
- L-ValineForBiochemistry99+%
- L-ValineForBiochemistry-(S)-A-AminoisovalericAcid
- L-VALINE 99% FOR BIOCHEMISTRY
- L-Valine-D8, 15N
- L-VALINE,CRYSTAL