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72-18-4

Basic Information
CAS No.: 72-18-4
Name: L-Valine
Molecular Structure:
Molecular Structure of 72-18-4 (L-Valine)
Formula: C5H11NO2
Molecular Weight: 117.15
Synonyms: Valine,L- (8CI);(+)-2-Amino-3-methylbutyric acid;(2S)-2-Amino-3-methylbutanoic acid;(S)-2-Amino-3-methylbutanoic acid;(S)-Valine;(S)-a-Amino-b-methylbutyric acid;2-Amino-3-methylbutanoic acid;Butanoic acid,2-amino-3-methyl-, (S)-;L-(+)-a-Aminoisovaleric acid;L-a-Amino-b-methylbutyricacid;NSC 76038;Valine;H-Val-OH;
EINECS: 200-773-6
Density: 1.064 g/cm3
Melting Point: 295-300 °C (subl.)(lit.)
Boiling Point: 213.642 °C at 760 mmHg
Flash Point: 83.008 °C
Solubility: 85 g/L (20 °C) in water
Appearance: White crystalline powder
Hazard Symbols: HarmfulXn
Risk Codes: 40
Safety: 24/25-36-22
Transport Information:
PSA: 63.32000
LogP: 0.75460
Synthetic route
26081-00-5

N-carbamoyl-valine

72-18-4

L-valine

Conditions
ConditionsYield
With NH4Cl-NH4OH buffer pH 8.5; nickel dichloride at 60℃; for 24h; N-carbamyl-L-amino acid aminohydrolase;100%
With Tris-HCl buffer; N-carbamoyl-L-amino acid hydrolase; iron(II) sulfate at 30℃; for 2h;
With sodium phosphate buffer; N-carmamyl-L-amino acid aminohydrolase of Pseudomonas sp. strain NS671; water; manganese(II) at 30℃; for 0.5h; Product distribution;18.9 mmol
439912-46-6

Proc-Val-OH

72-18-4

L-valine

Conditions
ConditionsYield
With resin bound tetrathiomolybdate In methanol at 28℃; for 1.5h; ultrasonic bath;100%

2C16H16O4*C5H11NO2

A

72-18-4

L-valine

B

178306-52-0

(S)-2-hydroxy-3-methoxy-3,3-diphenylpropionic acid

Conditions
ConditionsYield
In ethyl acetate at 80℃; for 3h; Solvent;A 97%
B 100%
2507-77-9

α-ketoisovalerate

72-18-4

L-valine

Conditions
ConditionsYield
With ammonium formate; tris hydrochloride; nicotinamide adenine dinucleotide; formate dehydrogenase; phenylalanine dehydrogenase In water at 30℃; for 24h;97%
269742-33-8

(2S)-2-(N-tert-Butoxycarbonyl)amino-3-methylbut-3-enoic acid

72-18-4

L-valine

Conditions
ConditionsYield
With hydrogen; palladium on activated charcoal In ethyl acetate at 20℃; for 3h; Catalytic hydrogenation;94%
13734-41-3

t-Boc-L-valine

72-18-4

L-valine

Conditions
ConditionsYield
With tetradecyl(trihexyl)phosphonium bistriflamide; trifluoroacetic acid at 130℃; for 0.166667h; Ionic liquid;93%
at 140℃; for 2h;70%
at 130℃; for 1h;
Multi-step reaction with 4 steps
1.1: triethylamine; chloroformic acid ethyl ester / dichloromethane / 1 h / 20 °C / Inert atmosphere
1.2: 2 h / 20 °C / Inert atmosphere
2.1: hydrogenchloride / water; methanol / 4 h / 0 - 20 °C / Inert atmosphere
3.1: N,N-dimethyl-formamide / 5 h / Inert atmosphere; Reflux
4.1: hydrogenchloride; acetic acid / water; toluene / 44 h / 110 °C / Inert atmosphere
View Scheme
516-06-3

D,L-valine

72-18-4

L-valine

Conditions
ConditionsYield
With D-amino acid oxidase; E. coli branched-chain amino acid aminotransferase In water at 37℃; for 72h; Tris buffer, pH 8.5, 1mM EDTA, monosodium glutamate, bovine serum albumin, catalase, pyridoxal 5'-phosphate;90%
mit Hilfe eines Enzym-Praeparats aus Schweine-Nieren;
bei der Vergaerung mit Hefe unter Zusatz von Zucker;

C5H11NO2*H3N*ClH

72-18-4

L-valine

Conditions
ConditionsYield
With ruthenium nanoparticles dispersed in a polyvinylpyrrolidone matrix; amberlyst A-21 In methanol; dichloromethane89%
68858-20-8

Fmoc-Val-OH

A

72-18-4

L-valine

B

4425-82-5

9-methylene-fluorene

Conditions
ConditionsYield
With dimethyl sulfoxide at 120℃; for 0.25h; Microwave irradiation;A 88%
B n/a

Nmoc-Val-OH

72-18-4

L-valine

Conditions
ConditionsYield
With sodium tetrahydroborate In methanol; aq. phosphate buffer at 20℃; for 1.33333h; Cooling with ice; Sealed tube;88%
127556-10-9

(2R)-N-<(2S)-2--3-methylbutan-1-oyl>bornane-10,2-sultam

72-18-4

L-valine

Conditions
ConditionsYield
With hydrogenchloride; lithium hydroxide 1.) THF/water, r.t., 24 h, 2.) THF/water 2 : 1, r.t., 24 h;87%
15136-27-3

trans-cyclo(D-Ala-Val)

A

338-69-2

D-Alanine

B

72-18-4

L-valine

Conditions
ConditionsYield
With hydrogenchloride; waterA 86%
B n/a
With hydrogenchlorideA 86%
B n/a
With hydrogenchloride; water for 24h; Heating;
631921-65-8

((S)-1-Cyano-2-methyl-propyl)-carbamic acid methyl ester

72-18-4

L-valine

Conditions
ConditionsYield
With hydrogenchloride In water for 7h; Heating;85%
108437-93-0

(2S,5S)-N-<(S)-N-bis(methylthio)methylenevalyl>-2,5-bis(methoxymethoxymethyl)pyrrolidine

72-18-4

L-valine

Conditions
ConditionsYield
With hydrogenchloride for 4h; Heating;81%

(3RS,6S)-3-[di(methoxycarbonyl)methyl]-6-isopropyl-2,5-piperazinedione

A

72-18-4

L-valine

B

71855-54-4

D-aspartic acid hydrochloride

C

17585-59-0

L-aspartic acid hydrochloride

Conditions
ConditionsYield
With hydrogenchloride; water at 100℃; for 24h;A 81%
B n/a
C n/a
202347-80-6

(3S,5S)-3-Isopropyl-5-phenyl-morpholin-2-one

72-18-4

L-valine

Conditions
ConditionsYield
With hydrogen; trifluoroacetic acid; palladium dihydroxide In methanol; water under 3750.3 Torr; for 24h;78%
16652-76-9

L-valine benzyl ester p-toluenesulfonate salt

72-18-4

L-valine

Conditions
ConditionsYield
With hydrogenchloride Heating;70%
67-56-1

methanol

L-Tyrosyl-L-valine

A

538-86-3

benzyl methyl ether

B

72-18-4

L-valine

Conditions
ConditionsYield
With potassium hydroxide; [bis(acetoxy)iodo]benzene at 0 - 5℃; for 1.5h;A 65%
B n/a

(3S)-1-[(R)-1-phenylethyl]-3-(propan-2-yl)-1,4-diazaspiro[4.5]decan-2-one

72-18-4

L-valine

Conditions
ConditionsYield
With hydrogenchloride; acetic acid In water; toluene at 110℃; for 44h; Inert atmosphere;65%
155486-42-3

(1R,2R,3R,5R)-1-((S)-1-Cyano-2-methyl-propylamino)-5-isopropenyl-2-methyl-cyclohexane-1,3-dicarbonitrile

72-18-4

L-valine

Conditions
ConditionsYield
With hydrogenchloride at 110℃; for 12h;62%
56-40-6

L-Glycin

1676-85-3, 2816-12-8, 24601-74-9, 43089-05-0

L-Valin-N-carbonsaeureanhydrid

A

72-18-4

L-valine

B

686-43-1

valylglycine

C

3918-94-3

Val-Val

D

462-60-2

N-carbamoylglycine

E

oligomers of val

oligomers of val

Conditions
ConditionsYield
With water; potassium hydroxide; potassium borate buffer at 3℃; Product distribution; effect of use of various amino acid and NCA with various concentrations; effect of use various temp.; extent of hydrolysis;A n/a
B 57.4%
C n/a
D n/a
E n/a
3715-29-5

sodium 3-methyl-2-oxobutyrate

72-18-4

L-valine

Conditions
ConditionsYield
With zinc(II) perchlorate; (R)-15-amino-methyl-14-hydroxy-5,5-dimethyl-2,8-dithia<9>(2,5)pyridinophane In methanol for 24h; Ambient temperature;57%
With ammonium sulfate; NADP+-specific glutamate dehydrogenase from Pseudomonas putida, I406F mutant; NADPH In aq. phosphate buffer at 35℃; pH=7.5; Reagent/catalyst; Green chemistry; Enzymatic reaction; enantioselective reaction;
52-67-5

3,3-dimethyl-D-cysteine

A

640-68-6

D-Val-OH

B

72-18-4

L-valine

Conditions
ConditionsYield
nickel In water for 1h; Product distribution; Ambient temperature; further amounts of catalyst;A 45%
B n/a
Conditions
ConditionsYield
With methanol; brucine ueber mehrere Stufen;
2901-80-6

N-benzoyl-D,L-valine

72-18-4

L-valine

Conditions
ConditionsYield
mit Hilfe eines Enzym-Praeparats aus Pseudomonas;
2901-80-6

N-benzoyl-D,L-valine

A

72-18-4

L-valine

B

2901-80-6, 5699-79-6, 80394-38-3

(2R)-2-(benzoylamino)-3-methylbutyric acid

Conditions
ConditionsYield
With soil bacteria
25692-88-0

Nα-[2-(4-biphenylyl)-2-propyloxycarbonyl]-L-valine

72-18-4

L-valine

Conditions
ConditionsYield
With acetic acid at 22 - 25℃; Rate constant; other reaction partners;
75-30-9

2-iodo-propane

6456-74-2

Glycine tert-butyl ester

A

640-68-6

D-Val-OH

B

72-18-4

L-valine

Conditions
ConditionsYield
Yield given. Multistep reaction. Yields of byproduct given. Title compound not separated from byproducts;
78-82-0

Isobutyronitrile

72-18-4

L-valine

Conditions
ConditionsYield
With perchloric acid; N,N-Dichlorobenzenesulfonamide In methanol; water at 29.9℃; Equilibrium constant;
67-56-1

methanol

72-18-4

L-valine

6306-52-1

L-valine methylester hydrochloride

Conditions
ConditionsYield
With thionyl chloride at 0 - 20℃;100%
With thionyl chloride at 20℃; Cooling with ice; Inert atmosphere;100%
Stage #1: L-valine With thionyl chloride at 0℃; for 4.16667h; Reflux;
Stage #2: methanol
100%
85-44-9

phthalic anhydride

72-18-4

L-valine

6306-54-3

N-phthaloyl L-valine

Conditions
ConditionsYield
at 135℃;100%
at 140℃; for 0.166667h;98%
In melt at 140℃; for 0.25h;98%
72-18-4

L-valine

501-53-1

benzyl chloroformate

1149-26-4

(S)-N-(benzyloxycarbonyl)valine

Conditions
ConditionsYield
With sodium hydrogencarbonate In water Inert atmosphere;100%
With sodium hydroxide In water at 0 - 20℃;100%
With potassium carbonate In water at 0 - 2℃; pH=1.5 - Ca. 2; Reagent/catalyst; pH-value; Temperature; Solvent;99%
75-44-5

phosgene

72-18-4

L-valine

24601-74-9

(S)-4-isopropyloxazolidine-2,5-dione

Conditions
ConditionsYield
In tetrahydrofuran at 40℃; for 1.5h;100%
In tetrahydrofuran at 40℃; for 5h;99.7%
In tetrahydrofuran; toluene at 50 - 60℃; for 4h;96%
64-17-5

ethanol

72-18-4

L-valine

17431-03-7

L-valine ethyl ester

Conditions
ConditionsYield
With thionyl chloride at -10℃; Heating / reflux;100%
With thionyl chloride at -10℃; Heating / reflux;100%
With hydrogenchloride for 12h; Reflux;81.5%
72-18-4

L-valine

24424-99-5

di-tert-butyl dicarbonate

13734-41-3

t-Boc-L-valine

Conditions
ConditionsYield
With triethylamine In 1,4-dioxane; water100%
With sodium hydroxide In 1,4-dioxane; water at 0℃;100%
With sodium hydroxide In tetrahydrofuran; water at 20℃; for 16h;100%
72-18-4

L-valine

78-83-1

2-methyl-propan-1-ol

104-15-4

toluene-4-sulfonic acid

13018-45-6

(S)-1-isobutoxy-3-methyl-1-oxobutan-2-aminium 4-methylbenzenesulfonate

Conditions
ConditionsYield
In water; toluene for 24h; Reflux; Dean-Stark;100%
In benzene Heating;84%
In benzene Heating;
72-18-4

L-valine

1885-14-9

phenyl chloroformate

126147-70-4

(2S)-3-Methyl-2-(phenoxycarbonyl)aminobutyric acid

Conditions
ConditionsYield
With sodium hydroxide; potassium hydrogencarbonate for 1.5h; Ambient temperature;100%
With aluminum oxide; lithium chloride; lithium hydroxide In water at -20 - -10℃; for 5h; pH=9.5 - 10.2; Schotten-Baumann Reaction; Inert atmosphere;92%
Stage #1: L-valine; phenyl chloroformate With sodium hydroxide In water at 0℃; for 5h;
Stage #2: With hydrogenchloride In water pH=2;
75.9%
72-18-4

L-valine

2937-50-0

Allyl chloroformate

115491-96-8

N-allyloxycarbonyl-(L)-valine

Conditions
ConditionsYield
With potassium carbonate In tetrahydrofuran; water at 20℃; for 18h;100%
With potassium carbonate In tetrahydrofuran; water at 20℃; for 18h;100%
With potassium carbonate In tetrahydrofuran; water at 20℃; for 18h;100%
72-18-4

L-valine

40224-47-3

azidovaline

Conditions
ConditionsYield
With imidazole-1-sulfonyl azide hydrochloride; copper(ll) sulfate pentahydrate; potassium carbonate In methanol at 20℃; for 18h;100%
With imidazole-1-sulfonyl azide hydrochloride; potassium carbonate; copper(II) sulfate In methanol at 20℃;100%
With sodium azide; copper(ll) sulfate pentahydrate; trifluoromethylsulfonic anhydride; potassium carbonate In methanol; dichloromethane; water97%
72-18-4

L-valine

5159-41-1

2-iodobenzyl alcohol

219645-03-1

N-(2'-hydroxymethylphenyl)-L-valine

Conditions
ConditionsYield
With copper(l) iodide; caesium carbonate In dimethyl sulfoxide at 90℃; for 48h;100%
With copper(l) iodide; 2,4-dichlorophenoxyacetic acid dimethylamine; potassium carbonate at 90℃; for 48h;86%
With water; potassium carbonate; copper(l) iodide In N,N-dimethyl acetamide at 90℃; for 48h;81%
72-18-4

L-valine

107-13-1

acrylonitrile

91384-08-6

[N,N-Bis(2-cyanoethyl)]-L-valine

Conditions
ConditionsYield
With sodium hydroxide; water at 100℃; for 24h; Alkylation;100%

2-[tris(perfluorodecyl)silyl]ethoxycarbonyl-O-succimide

72-18-4

L-valine

N-FTeoc-valine

Conditions
ConditionsYield
With triethylamine In tetrahydrofuran; water at 20℃; for 2h;100%
72-18-4

L-valine

60702-69-4

2-chloro-4-fluorobenzonitrile

N-(3-chloro-4-cyanophenyl)valine

Conditions
ConditionsYield
With caesium carbonate In dimethyl sulfoxide at 90℃;100%
72-18-4

L-valine

879-18-5

naphthalene-1-carbonic acid chloride

215096-58-5

N-(1-naphthoyl)-L-valine

Conditions
ConditionsYield
Stage #1: L-valine With sodium hydroxide In water at 0℃; for 1h; Inert atmosphere;
Stage #2: naphthalene-1-carbonic acid chloride In tetrahydrofuran; water at 20℃; Inert atmosphere;
100%
72-18-4

L-valine

1207290-13-8

C13H13FO

1493778-21-4

methyl (S)-2-((4-fluoro-2-(hex-1-ynyl)benzylidene)amino)-3-methylbutanoate

Conditions
ConditionsYield
In dichloromethane at 20℃; Molecular sieve;100%
59985-82-9

5-phenylisoxazole-3-carbaldehyde

72-18-4

L-valine

C15H15N2O3(1-)*Li(1+)

Conditions
ConditionsYield
With lithium hydride In methanol Reflux;100%
59985-82-9

5-phenylisoxazole-3-carbaldehyde

72-18-4

L-valine

C15H15N2O3(1-)*Na(1+)

Conditions
ConditionsYield
With sodium methylate In methanol Reflux;100%
59985-82-9

5-phenylisoxazole-3-carbaldehyde

72-18-4

L-valine

2C15H15N2O3(1-)*Ca(2+)

Conditions
ConditionsYield
With calcium hydride In methanol Reflux;100%
72-18-4

L-valine

640292-02-0

5-(4-methylphenyl)-1,2-oxazole-3-carbaldehyde

C16H17N2O3(1-)*Li(1+)

Conditions
ConditionsYield
With lithium hydride In methanol Reflux;100%
72-18-4

L-valine

640292-02-0

5-(4-methylphenyl)-1,2-oxazole-3-carbaldehyde

C16H17N2O3(1-)*Na(1+)

Conditions
ConditionsYield
With sodium methylate In methanol Reflux;100%
72-18-4

L-valine

640292-02-0

5-(4-methylphenyl)-1,2-oxazole-3-carbaldehyde

2C16H17N2O3(1-)*Ca(2+)

Conditions
ConditionsYield
With calcium hydride In methanol Reflux;100%
72-18-4

L-valine

2052-49-5

tetra(n-butyl)ammonium hydroxide

(Sa)-3,3'-diformyl-2,2'-dihydroxy-1,1'-binaphthalene

C32H30N2O6(2-)*2C16H36N(1+)

Conditions
ConditionsYield
In methanol at 0℃; for 12h;100%
72-18-4

L-valine

104-15-4

toluene-4-sulfonic acid

873-76-7

para-Chlorobenzyl alcohol

(S)-1-((4-chlorobenzyl)oxy)-3-methyl-1-oxobutan-2-aminium 4-methylbenzenesulfonate

Conditions
ConditionsYield
In water; toluene for 24h; Reflux; Dean-Stark;100%
627-27-0

homoalylic alcohol

72-18-4

L-valine

104-15-4

toluene-4-sulfonic acid

(S)-1-(but-3-en-1-yloxy)-3-methyl-1-oxobutan-2-aminium 4-methylbenzenesulfonate

Conditions
ConditionsYield
In water; toluene for 24h; Reflux; Dean-Stark;100%
72-18-4

L-valine

17720-18-2

1-((2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)pyridin-1-ium-3-carboxylate

1-((2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)pyridin-1-ium-3-carboxylate (S)-2-ammonio-3-methylbutanoate

Conditions
ConditionsYield
In water pH=5.67; Cooling with ice;100%
72-18-4

L-valine

nicotinic acid riboside 5'-monophosphate

73-22-3

L-Tryptophan

(S)-1-carboxy-2-(1H-indol-3-yl)ethan-1-aminium (S)-1-carboxy-2-methylpropan-1-aminium 1-((2R,3R,4S,5R)-3,4-dihydroxy-5-((phosphonatooxy)methyl)tetrahydrofuran-2-yl)pyridin-1-ium-3-carboxylate

Conditions
ConditionsYield
In water pH=2.24 - 2.49; Inert atmosphere; Cooling with ice;100%
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  • Casno:

    72-18-4

    L-Valine

    Min.Order: 1 Gram

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    72-18-4

    L - Valine nutritional supplements

    Min.Order: 1000 Kilogram

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    L-Valine Molecular formula: C5H11NO2 CAS No. :72 -18-4 Appearance: White monoclinic system crystals or crystalline powder, odorless, special bitter. Assay: 65% (dry basis) 98.5% ~ 101.5% Quality Standards: food grade

    Jixiang Co., Ltd. was established in the spring of 2014. Our company is a newly-emerged enterprise specializing in R&D and sales of food nutrition functional enhancers and animal h

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  • L-Valine,72-18-4

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    72-18-4

    L-Valine,72-18-4

    Min.Order: 100 Kilogram

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    CAS No.: 72-18-4 Other Names: L-2-amino-3-methylbutyric-acid MF: C5H11NO2 EINECS No.: 200-773-6 Place of Origin: Anhui China (Mainland) Type:

    Chengdu Baishixing Science and Technology Industry Co.,Ltd is situated in the national ecology example county ,which is Pujiang county in Chengdu city,Sichuan province.Pujiang is

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  • L-Valine

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    L-Valine

    Min.Order: 100 Gram

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    Product nature L-valine is white monoclinic crystal or crystalline powder, and it is colorless plate or flake crystal when re cleaned with ethanol aqueous solution. Odorless, with special bitterness. The pH value is 5.5 ~ 7.0. Stable to heat,

    JIN DUN CHEMICAL belongs to the JIN DUN GROUP which is focusing on manufacturing of chemical and textile field. The head office of JIN DUN GROUP is located in SHANGHAI city, near H

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    72-18-4

    L-Valine

    Min.Order: 100 Kilogram

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    1.High quality with good price 2:USP standard 3.be food additive,nutrition enhancer Appearance:white crystalline powder Storage:storage in ambient temperature Package:5-25KG/drum or bag Application:food additives Transportation:by sea or air

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  • High purity L-Valine CAS:72-18-4

  • Casno:

    72-18-4

    High purity L-Valine CAS:72-18-4

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    72-18-4

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    72-18-4

    L-Valine CAS NO.72-18-4

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  • Casno:

    72-18-4

    MSDS/COA Download

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    72-18-4

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    72-18-4

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    72-18-4

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  • Casno:

    72-18-4

    L-Valine

    Min.Order: 1 Kilogram

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  • Casno:

    72-18-4

    L-Valine

    Min.Order: 0

    FOB Price:  USD $ 0.0-0.0/

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  • Casno:

    72-18-4

    MSDS/COA Download

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  • L-VALINE

  • Casno:

    72-18-4

    L-VALINE

    Min.Order: 25 Kilogram

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  • Casno:

    72-18-4

    L-Valine CAS: 72-18-4

    Min.Order: 5 Metric Ton

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    Formula:C5H11NO2 Molecular Weight:117.15 Deleted CAS:7004-03-7|16872-32-5 Synonyms:Valine,L- (8CI);(+)-2-Amino-3-methylbutyric acid;(2S)-2-Amino-3-methylbutanoic acid;(S)-2-Amino-3-methylbutanoic acid;(S)-Valine;(S)-a-Amino-b-methylbutyric ac

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    72-18-4

    MSDS/COA Download

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    72-18-4

    L-Valine_

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    L-Valine Basic information Amino acids The main effect of feed additives Content Analysis Toxicity Maximum level Chemical propertyApplications Synthetic method Product Name: L-Valine

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    72-18-4

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    72-18-4

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    72-18-4

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    72-18-4

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    72-18-4

    MSDS/COA Download

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    72-18-4

    MSDS/COA Download

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  • Casno:

    72-18-4

    L-Valine

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    DESCRIPTION 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 classifie

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    72-18-4

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    72-18-4

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Consensus Reports

Reported in EPA TSCA Inventory.

Specification

1. Introduction of L-Valine

L-Valine, with the IUPAC Name of (2S)-2-amino-3-methylbutanoic acid, is one kind of white crystalline powder. This belongs to the Product Categories which include Amino Acids;Amino Acid Derivatives;Valine [Val, V];Amino Acids and Derivatives;alpha-Amino Acids;Biochemistry;Nutritional Supplements;Amino Acids.

2. Properties of L-Valine

L-Valine has the following datas: (1)Index of Refraction: 1.461; (2)Molar Refractivity: 30.23 cm3; (3)Molar Volume: 110.1 cm3; (4)Polarizability: 11.98×10-24cm3; (5)Surface Tension: 39.8 dyne/cm; (6)Density: 1.063 g/cm3; (7)Flash Point: 83 °C; (8)Enthalpy of Vaporization: 49.58 kJ/mol; (9)Melting Point: 295-300 °C (subl.)(lit.); (10)Boiling Point: 213.6 °C at 760 mmHg; (11)Vapour Pressure: 0.0633 mmHg at 25°C; (12)Water Solubility: 85 g/L (20 oC).

3. Structure Descriptors of L-Valine

You could convert the following datas into the molecular structure:
(1)Canonical SMILES: CC(C)C(C(=O)O)N
(2)Isomeric SMILES: CC(C)[C@@H](C(=O)O)N
(3)InChI: InChI=1S/C5H11NO2/c1-3(2)4(6)5(7)8/h3-4H,6H2,1-2H3,(H,7,8)/t4-/m0/s1
(4)InChIKey: KZSNJWFQEVHDMF-BYPYZUCNSA-N

4. Toxicity of L-Valine

1.    

oms-omi 10 mmol/L

    CBINA8    Chemico-Biological Interactions. 16 (1977),201.
2.    

ipr-rat LD50:5390 mg/kg ABBIA4 58,253,55


5. Safety Information of L-Valine
Hazard Codes: HarmfulXn
Risk Statements: 40 
R40:Limited evidence of a carcinogenic effect.
Safety Statements: 24/25-36-22 
S24/25:Avoid contact with skin and eyes. 
S36:Wear suitable protective clothing. 
S22:Do not breathe dust.
WGK Germany: 3
RTECS: YV9361000
HS Code: 29224995
Mutation data reported. When heated to decomposition it emits toxic fumes of NOx.

6. Production of L-Valine

Racemic valine can be synthesized by bromination of isovaleric acid followed by amination of the α-bromo derivative
HO2CCH2CH(CH3)2 + Br2 → HO2CCHBrCH(CH3)2 + HBr
HO2CCHBrCH(CH3)2 + 2 NH3 → HO2CCH(NH2)CH(CH3)2 + NH4Br