1188-21-2

Basic information

• Product Name: N-Acetyl-L-leucine
• Synonyms: AKOS BBS-00004735;ACETYL-DL-LEUCINE, N-;ACETYL-DL-LEUCINE;ACETYL-L-LEUCINE;AC-DL-LEU-OH;AC-LEUCINE;AC-LEU-OH;IFLAB-BB F0777-0821
• CAS NO: 1188-21-2
• Molecular Formula: C₈H₁₅NO₃
• Molecular Weight: 173.21
• EINECS: 214-706-3
• Product Categories: Amino Acids Derivatives;Amino Acid Derivatives;Amino Acids;Leucine [Leu, L];Amino Acids and Derivatives;Ac-Amino Acids;Amino Acids (N-Protected);Biochemistry;N-Acetyl-Amino acid series;Amino Acid Derivatives;Leucine;Peptide Synthesis;amino acid;amino
• Mol File: 1188-21-2.mol
• Article Data: 45

Chemical Properties

• Melting Point: 187-190 °C(lit.)
• Boiling Point: 303.86°C (rough estimate)
• Flash Point: 177.4 °C
• Appearance: White/Crystalline Powder
• Density: 1.1599 (rough estimate)
• Vapor Pressure: 1.77E-06mmHg at 25°C
• Refractive Index: -22 ° (C=5, EtOH)
• Storage Temp.: −20°C
• Solubility: DMSO (Slightly), Ethanol (Slightly), Water (Slightly, Heated)
• PKA: 3.67±0.10(Predicted)
• Water Solubility: 0.81 g/100 mL (20 ºC)
• BRN: 1724849
• CAS DataBase Reference: N-Acetyl-L-leucine(CAS DataBase Reference)
• NIST Chemistry Reference: N-Acetyl-L-leucine(1188-21-2)
• EPA Substance Registry System: N-Acetyl-L-leucine(1188-21-2)

Safety Data

• Hazard Codes: Xi
• Statements: 36/37/38
• Safety Statements: 24/25-36-26
• WGK Germany: 3
• TSCA: Yes
• HazardClass: IRRITANT
• Hazardous Substances Data: 1188-21-2(Hazardous Substances Data)

Usage

Chemical Properties

White crystalline powder

Uses

N-Acetyl-L-(-)-leucine is used in the preparation of small molecule inhibitors of anti-apoptotic Bcl-2 family proteins. Also used in the preparation of amphiphilic copolymers involving hydrophobic amino acid and oligopeptide side chains for optical tumor imaging in vivo.

Definition

ChEBI: The N-acetyl derivative of L-leucine.

InChI:InChI=1/C8H15NO3/c1-5(2)4-7(8(11)12)9-6(3)10/h5,7H,4H2,1-3H3,(H,9,10)(H,11,12)/p-1/t7-/m0/s1

Synthetic route

(Z)-2-Acetylamino-4-methyl-pent-2-enoic acid (64896-30-6) → N-Ac-Leu (1188-21-2)

Conditions	Yield
With hydrogen; rhodium(I)-bis(1,5-cyclooctadiene) tetrafluoroborate; triethylamine; (2R,2'R)-bis(diphenylphosphino)-(1R,1'R)-dicyclopentane In tetrahydrofuran at 20℃; under 750.075 Torr; for 24h;	100%
With hydrogen; Rh(I)-(S)-chairphos In tetrahydrofuran Product distribution; Ambient temperature; other catalyst; other solvents; influence on products' optical yields;
With hydrogen; (S)-(-)-(6,6’-dimethoxybiphenyl-2,2’-diyl)bis(diphenylphosphine); [rhodium(I)(norborna-2,5-diene)2]SbF6 In dichloromethane at 20℃; under 1292.87 Torr; for 24h;
With chiral (1,1'-ferrocenediyl)bis(phospholo[3,4-d][1,3]dioxole); hydrogen; bis(1,5-cyclooctadiene)rhodium(I) hexafluorophosphate In tetrahydrofuran at 20℃; under 775.743 Torr; for 1h;

L-leucine (61-90-5) + acetic anhydride (108-24-7) → N-Ac-Leu (1188-21-2)

Conditions	Yield
In water for 0.0666667h; Irradiation;	98%
With sodium hydrogencarbonate In water at 0 - 20℃; for 5h;	89%
With triethylamine In water at 20℃;	35%

methyl N-acetyl-leucinate (57289-25-5) → N-Ac-Leu (1188-21-2) + methyl (R)-2-(N-acetylamino)-4-methylpentanoate (35799-87-2)

Conditions	Yield
With sodium hydroxide; phosphate buffer; pronase EC 3.4.24.4 In tetrahydrofuran Ambient temperature;	A 79% B 91%

L-Norvaline (6600-40-4) + acetic anhydride (108-24-7) → N-Ac-Leu (1188-21-2)

Conditions	Yield
at 0 - 20℃;	89%

(S)-benzyl 2-acetamido-4-methylpentanoate (244250-56-4) → N-Ac-Leu (1188-21-2)

Conditions	Yield
With palladium 10% on activated carbon; hydrogen In ethanol at 50℃; for 3h;	81%
With palladium 10% on activated carbon; hydrogen In ethanol at 50℃; for 3h;	81%

Ketene (463-51-4) + L-leucine (61-90-5) → N-Ac-Leu (1188-21-2)

Conditions	Yield
With sodium hydroxide

N-acetylleucine (99-15-0) → N-Ac-Leu (1188-21-2)

Conditions	Yield
With (-)-α-fenchylamine

methyl N-acetyl-leucinate (57289-25-5) → N-Ac-Leu (1188-21-2)

methyl N-acetyl-leucinate (57289-25-5) → N-Ac-Leu (1188-21-2) + N-acetyl-D-leucine (19764-30-8)

Conditions	Yield
for 118h; carbonate hydrolyase EC 4.2.2.1 (bovine carbonic anhydrase, BCA), pH 7.5; Yield given. Yields of byproduct given. Title compound not separated from byproducts;

ethyl N-acetyl-leucinate (4071-36-7) → N-Ac-Leu (1188-21-2) + N-acetyl-O-ethyl-D-leucine (75552-78-2)

Conditions	Yield
In ethanol; water at 35℃; for 48h; Yield given;

2-acetylamino-4-methyl-pent-2-enoic acid (915008-30-9) → N-Ac-Leu (1188-21-2)

Conditions	Yield
With hydrogen; <(2R,3R)-2,3-Bis(diphenylphosphino)butan>(ϖ-norbornadien)rhodium(I)-perchlorate In tetrahydrofuran under 3000.2 Torr; for 8h; Yield given;

2-acetylamino-4-methyl-pent-2-enoic acid (915008-30-9) → N-Ac-Leu (1188-21-2) + N-acetyl-D-leucine (19764-30-8)

Conditions	Yield
With hydrogen; ClO4; (2R,3S)-1,2-bis(diphenylphosphino)-3-tBoc-aminobutane In ethanol for 22h; Ambient temperature; Yield given;
With ; hydrogen In ethanol at 20℃; under 760 Torr; Title compound not separated from byproducts;

(Z)-2-Acetylamino-4-methyl-pent-2-enoic acid (64896-30-6) → N-Ac-Leu (1188-21-2) + N-acetyl-D-leucine (19764-30-8)

Conditions	Yield
With <(1R;2R-MAC-PONP)Rh(COD)>(+)BF4(-); hydrogen In methanol at 30℃; under 750.06 Torr; Title compound not separated from byproducts;
With bis(1,5-cyclooctadiene)rhodium(I) tetrafluoroborate; hydrogen; triethylamine; (2R,2'R)-bis(diphenylphosphino)-(1R,1'R)-dicyclopentane In tetrahydrofuran under 760 Torr; for 24h; Ambient temperature; Yield given. Yields of byproduct given. Title compound not separated from byproducts;
With hydrogen; triethylamine; ClO4; (2S,4S)-MOD-BPPM In ethanol at 50℃; under 15200 Torr; for 20h; Title compound not separated from byproducts;

(1'S,3S)-8-acetoxy-3-<1'-(acetylamino)-3'-methylbutyl>-3,4-dihydro-1-oxo-1H-2-benzopyran (85785-66-6) → N-Ac-Leu (1188-21-2)

Conditions	Yield
With potassium permanganate; magnesium sulfate In water for 1.5h; Heating;

L-leucine (61-90-5) + 4-nitrophenol acetate (830-03-5) → 4-nitro-phenol (100-02-7) + N-Ac-Leu (1188-21-2)

Conditions	Yield
β‐cyclodextrin In water; dimethyl sulfoxide at 25℃; Rate constant; Mechanism; various conditions;

N-acetyl-DL-isoleucine butyl ester (2256-97-5) → N-Ac-Leu (1188-21-2) + N-acetyl-D-leucine (19764-30-8)

Conditions	Yield
With rice bran lipase; sodium chloride at 30℃; pH=7.5; Title compound not separated from byproducts;

acetamide (60-35-5) + carbon monoxide (201230-82-2) + isovaleraldehyde (590-86-3) → N-Ac-Leu (1188-21-2) + N-acetyl-D-leucine (19764-30-8)

Conditions	Yield
With sulfuric acid; lithium bromide; bis(triphenylphosphine)palladium dibromide In various solvent(s) at 120℃; under 45003.6 Torr; for 12h; Yield given. Yields of byproduct given. Title compound not separated from byproducts;

Ketene (463-51-4) + L-leucine (61-90-5) + alkali → N-Ac-Leu (1188-21-2)

DL-leucine methyl ester (18869-43-7) → N-Ac-Leu (1188-21-2)

Conditions	Yield
Multi-step reaction with 3 steps 1: NaOCH3 / Brenner esterification 2: pyridine 3: H2O; ethanol / 48 h / 35 °C View Scheme

DL-leucine ethyl ester (2899-43-6) → N-Ac-Leu (1188-21-2)

Conditions	Yield
Multi-step reaction with 2 steps 1: pyridine 2: H2O; ethanol / 48 h / 35 °C View Scheme

(3S)-3-<(1'S)-1'-amino-3'-methylbutyl>-3,4-dihydro-8-hydroxy-1H-2-benzopyran-1-one (57765-73-8) → N-Ac-Leu (1188-21-2)

Conditions	Yield
Multi-step reaction with 2 steps 1: 91 percent / pyridine / 2 h / 50 °C 2: KMnO4, MgSO4 / H2O / 1.5 h / Heating View Scheme

C8H13NO3 (74839-85-3) → N-Ac-Leu (1188-21-2)

Conditions	Yield
With {Rh[ZhangPhos](nbd)}BF4; hydrogen In methanol at 20℃; under 1034.32 Torr; for 12h; optical yield given as %ee; enantioselective reaction;

L-leucine (61-90-5) + acetyl chloride (75-36-5) → N-Ac-Leu (1188-21-2)

Conditions	Yield
With potassium carbonate In 1,4-dioxane; water

L-leucine benzyl ester p-toluenesulfonate (1738-77-8) → N-Ac-Leu (1188-21-2)

Conditions	Yield
Multi-step reaction with 2 steps 1: HATU; N-ethyl-N,N-diisopropylamine / N,N-dimethyl-formamide / 2 h / 20 °C 2: palladium 10% on activated carbon; hydrogen / ethanol / 3 h / 50 °C View Scheme
Multi-step reaction with 2 steps 1: N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate; N-ethyl-N,N-diisopropylamine / N,N-dimethyl-formamide / 2 h / 20 °C 2: palladium 10% on activated carbon; hydrogen / ethanol / 3 h / 50 °C View Scheme

(S)-2-[1 (3-ethoxy-4-methoxyphenyl)]-1-methanesulfonyl-2-ethylamine (608141-42-0) + N-Ac-Leu (1188-21-2) → (S)-1-(3-ethoxy-4-methoxyphenyl)-2-(methylsulfonyl)ethanamine-(S)-2-acetamido-4-methylpentanoate (608141-43-1)

Conditions	Yield
In methanol for 1h; Reflux;	98.3%
In methanol at 65 - 70℃;
In methanol for 1h; Reflux;	1670 g

2-(3-ethoxy-4-methoxyphenyl)-1-(methylsulfonyl)eth-2-ylamine (253168-94-4) + N-Ac-Leu (1188-21-2) → 1-(3-ethoxy-4-methoxyphenyl)-2-methanesulfonyl-ethylamine N-acetyl-L-leucine salt

Conditions	Yield
In methanol at 20℃; for 4h; Reflux;	98%

N-Ac-Leu (1188-21-2) + 1,1,1,3',3',3'-hexafluoro-propanol (920-66-1) → C11H15F6NO3

Conditions	Yield
With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In dichloromethane at 0 - 20℃; for 4.5h;	98%

N-Ac-Leu (1188-21-2) + C12H19N → C20H32N2O2

Conditions	Yield
With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; N-ethyl-N,N-diisopropylamine In N,N-dimethyl-formamide at 20℃; for 8h;	96%

N-Ac-Leu (1188-21-2) + chloroacetonitrile (107-14-2) → C10H16N2O3

Conditions	Yield
With triethylamine In acetonitrile at 0 - 20℃; for 4.5h;	96%

N-Ac-Leu (1188-21-2) + (4R,5S)-1,5-Dimethyl-3-((2R,3S)-3-methyl-aziridine-2-carbonyl)-4-phenyl-imidazolidin-2-one (176791-95-0) → N-{(S)-1-[(2R,3S)-2-((4S,5R)-3,4-Dimethyl-2-oxo-5-phenyl-imidazolidine-1-carbonyl)-3-methyl-aziridine-1-carbonyl]-3-methyl-butyl}-acetamide (221374-48-7)

Conditions	Yield
With dicyclohexyl-carbodiimide In dichloromethane; acetonitrile for 12h; Ambient temperature;	95%

N-Ac-Leu (1188-21-2) + benzyl (R)-aziridine-2-carboxylate (86123-05-9) → benzyl (2R,2'S)-1-(2'-acetamido-4'-methylpentanoyl)aziridine-2-carboxylate (260784-04-1)

Conditions	Yield
With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; triethylamine In dichloromethane; N,N-dimethyl-formamide at 0℃; for 6h; Acylation;	95%

N-Ac-Leu (1188-21-2) + (4R,5S,2'R)-1,5-dimethyl-3-[(2'-aziridinyl)carbonyl]-4-phenylimidazolidin-2-one (199122-48-0) → (4R,5S,2'R,2''S)-1,5-dimethyl-3-{[1'-(2''-acetamido-4''-methylpentanoyl)-2'-aziridinyl]carbonyl}-4-phenylimidazolidin-2-one (260783-98-0)

Conditions	Yield
With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; triethylamine In dichloromethane; N,N-dimethyl-formamide at 0℃; for 6h; Acylation;	95%

N-Ac-Leu (1188-21-2) + 2,2,2-trifluoroethyl trifluoromethanesulphonate (6226-25-1) → C10H16F3NO3

Conditions	Yield
Stage #1: N-Ac-Leu With caesium carbonate In acetonitrile at 20℃; for 0.333333h; Stage #2: 2,2,2-trifluoroethyl trifluoromethanesulphonate In acetonitrile at 20℃; for 3h;	94%

formaldehyd (50-00-0) + N-Ac-Leu (1188-21-2) → 4-(S)-3-acetyl-4-isobutyl-5-oxazolidinone (125679-72-3)

Conditions	Yield
With K10 clay for 0.0333333h; Cyclization; microwave irradiation;	93%
With diethyldichlorosilane Heating;	60%
With toluene-4-sulfonic acid In benzene Heating;
With toluene-4-sulfonic acid In toluene

[(S)-1-((S)-1-{(S)-[(2R,3S)-2-((S)-1-Butylcarbamoyl-2-methyl-propylcarbamoyl)-tetrahydro-furan-3-yl]-hydroxy-methyl}-3-methyl-butylcarbamoyl)-3-methylsulfanyl-propyl]-carbamic acid tert-butyl ester (864366-92-7) + N-Ac-Leu (1188-21-2) → (2R,3S)-3-{(1S,2S)-2-[(S)-2-((S)-2-Acetylamino-4-methyl-pentanoylamino)-4-methylsulfanyl-butyrylamino]-1-hydroxy-4-methyl-pentyl}-tetrahydro-furan-2-carboxylic acid ((S)-1-butylcarbamoyl-2-methyl-propyl)-amide

Conditions	Yield
With hydrogenchloride In various solvents at 0 - 5℃;	92%

BOC-glycine (4530-20-5) + N-Ac-Leu (1188-21-2) + L-N-Boc-Ala (15761-38-3) + N-(tert-butoxycarbonyl)-5-(N,O-dimethyl-hydroxamide)-glutamine + Ph3P=CH-COOEt → (Z)-(S)-6-((S)-2-Acetylamino-4-methyl-pentanoylamino)-6-{(S)-1-[(S)-1-(carboxymethyl-carbamoyl)-2-phenyl-ethylcarbamoyl]-ethylcarbamoyl}-hex-2-enoic acid ethyl ester

Conditions	Yield
Solid phase reaction;	90%

2-(3-ethoxy-4-methoxyphenyl)-1-(methylsulfonyl)eth-2-ylamine (253168-94-4) + N-Ac-Leu (1188-21-2) → (S)-1-(3-ethoxy-4-methoxyphenyl)-2-(methylsulfonyl)ethanamine-(S)-2-acetamido-4-methylpentanoate (608141-43-1)

Conditions	Yield
In methanol at 20℃; for 8h; Reflux; Resolution of racemate;	90%
Stage #1: 2-(3-ethoxy-4-methoxyphenyl)-1-(methylsulfonyl)eth-2-ylamine; N-Ac-Leu In methanol for 1h; Reflux; Stage #2: In methanol at 20℃; for 4h; Reflux;	90%
In methanol at 20℃; for 4h; Reflux;	90%

N-Ac-Leu (1188-21-2) + diethyltin(IV) oxide (3682-12-0) → (C8H14NO3Sn(C2H5)2)2O

Conditions	Yield
In ethanol; benzene byproducts: H2O; acid:R2SnO molar ratio 1:1, benzene-ethanol; azeotropic removal of water, filtered, solvent was removed; solidified on trituration with petroleum ether; elem. anal.;	90%

N-Ac-Leu (1188-21-2) + dimethyltin oxide (2273-45-2) → (C8H14NO3Sn(CH3)2)2O

Conditions	Yield
In ethanol; benzene byproducts: H2O; acid:R2SnO molar ratio 1:1, benzene-ethanol; azeotropic removal of water, filtered, solvent was removed; solidified on trituration with petroleum ether; elem. anal.;	90%

N-Ac-Leu (1188-21-2) + methyl iodide (74-88-4) → N-acetyl-L-leucine methyl ester (1492-11-1)

Conditions	Yield
With potassium carbonate In N,N-dimethyl-formamide	89%
Stage #1: N-Ac-Leu With potassium carbonate In N,N-dimethyl-formamide at 25℃; for 24h; Stage #2: methyl iodide In N,N-dimethyl-formamide at 25℃; for 24h;

N-Ac-Leu (1188-21-2) + N-methylglycine methyl ester hydrochloride (13515-93-0) → N-acetyl-L-leucyl-N-methylglycine methyl ester

Conditions	Yield
Stage #1: N-Ac-Leu With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In dichloromethane at 0℃; for 0.166667h; Stage #2: N-methylglycine methyl ester hydrochloride With N-ethyl-N,N-diisopropylamine In dichloromethane at 0 - 20℃;	89%

methanol (67-56-1) + N-Ac-Leu (1188-21-2) → N-acetyl-L-leucine methyl ester (1492-11-1)

Conditions	Yield
With thionyl chloride at 0℃; for 4h;	88%

N-Ac-Leu (1188-21-2) + di(n-butyl)tin oxide (818-08-6) → (C8H14NO3Sn(C4H9)2)2O

Conditions	Yield
In ethanol; benzene byproducts: H2O; acid:R2SnO molar ratio 1:1, benzene-ethanol; azeotropic removal of water, filtered, solvent was removed; solidified on trituration with petroleum ether; elem. anal.;	87%

N-Ac-Leu (1188-21-2) + (S)-(9H-fluoren-9-yl)methyl (4,5-diamino-5-oxopentyl)carbamate → (9H-fluoren-9-yl)methyl ((S)-4-((S)-2-acetamido-4-methylpentanamido)-5-amino-5-oxopentyl)carbamate

Conditions	Yield
With N-ethyl-N,N-diisopropylamine; HATU In acetonitrile at 20℃; for 2h; Inert atmosphere;	87%

N-Ac-Leu (1188-21-2) + C12H14(2)H3NO4S → C12H15(2)H4NO4S*C8H15NO3

Conditions	Yield
Stage #1: C12H14(2)H3NO4S With bis(1,5-cyclooctadiene)rhodium(I) trifluoromethanesulfonate; (R)-(-)-1-[(S)-2-(diphenylphosphino)ferrocenyl]ethyldi-tert-butylphosphine; deuterium In 2,2,2-trifluoroethanol at 50℃; under 2585.81 Torr; for 16h; Stage #2: N-Ac-Leu In methanol at 20 - 55℃;	86%

N-Ac-Leu (1188-21-2) + C15H17Cl2NO3 → ((S)-2-acetamido-4-methylpentanoyloxy)methyl (S)-1-(2-chlorophenyl)-2-oxocyclohexyl(methyl)carbamate

Conditions	Yield
With potassium carbonate; sodium iodide In acetone at 70℃; for 1h;	86%

1-hydroxy-pyrrolidine-2,5-dione (6066-82-6) + N-Ac-Leu (1188-21-2) → N-acetyl-L-leucine N-hydroxysuccinimide ester (39740-61-9)

Conditions	Yield
With dicyclohexyl-carbodiimide In tetrahydrofuran at 0℃;	85%

N-Ac-Leu (1188-21-2) + C12H14(2)H3NO4S → C12H13(2)H6NO4S*C8H15NO3

Conditions	Yield
Stage #1: C12H14(2)H3NO4S With bis(1,5-cyclooctadiene)rhodium(I) trifluoromethanesulfonate; (R)-(-)-1-[(S)-2-(diphenylphosphino)ferrocenyl]ethyldi-tert-butylphosphine; deuterium In methanol; 2,2,2-trifluoroethanol at 50℃; under 2585.81 Torr; for 16h; Stage #2: N-Ac-Leu In methanol at 20 - 55℃;	85%

N-Ac-Leu (1188-21-2) + C12H10(2)H7NO4S → C12H11(2)H8NO4S*C8H15NO3

Conditions	Yield
Stage #1: C12H10(2)H7NO4S With bis(1,5-cyclooctadiene)rhodium(I) trifluoromethanesulfonate; (R)-(-)-1-[(S)-2-(diphenylphosphino)ferrocenyl]ethyldi-tert-butylphosphine; deuterium In 2,2,2-trifluoroethanol at 50℃; under 2585.81 Torr; for 16h; Stage #2: N-Ac-Leu In methanol at 20 - 55℃; for 1h;	85%

N-Ac-Leu (1188-21-2) + C12H5(2)H12NO4S → C12H5(2)H14NO4S*C8H15NO3

Conditions	Yield
Stage #1: C12H5(2)H12NO4S With bis(1,5-cyclooctadiene)rhodium(I) trifluoromethanesulfonate; (R)-(-)-1-[(S)-2-(diphenylphosphino)ferrocenyl]ethyldi-tert-butylphosphine; deuterium In 2,2,2-trifluoroethanol at 50℃; under 2585.81 Torr; for 16h; Stage #2: N-Ac-Leu In methanol at 55℃; for 1h;	85%

Upstream product

• 67-56-1 Methanol 
• 61-90-5 L-Leucine 

Downstream Products

• 1188-22-3 triethyl propane-1,2,3-tricarboxylate 
• 118822-55-2 O(6)-(2-cyanoethyl)guanine 
• 1188227-29-3 7-BroMo-2-chlorobenzothiazole 
• 1188232-19-0 4-chloro-2-Benzothiazolecarbonitrile 
• 1188233-00-2 Benzothiazole, 2-(chloroMethyl)-4,6-difluoro- 
• 1188233-96-6 7-BroMo-2-(chloroMethyl)benzo[d]thiazole 
• 1188236-02-3 4,6-dichloro-2-Benzothiazolecarbonitrile 
• 118824-34-3 2-Cyclohexen-1-one,3-(3-butynyloxy)-(9CI) 
• 1188-24-5 H-ARG-LEU-OH ACETATE SALT 
• 118824-96-7 4'-BENZYLOXY-2'-METHOXY-3'-METHYLACETOPHENONE 
• 118825-64-2 4-[4-(methylamino)butoxy]-9H-thioxanthen-9-one hydrochloride 
• 1188263-42-4 4,6-Dichloro-pyridin-2-ylaMine 
• 1188263-45-7 4-Acetaminophen-d3 Sulfate Potassium Salt 
• 1188263-46-8 5,6,7,8-Tetrahydro-4-methyl-2-quinazolinemethanaminehydrochloride 

Recommend Products

• 1492-11-1  N-acetyl-L-leucine methyl ester 
• 186581-53-3  diazomethane 
• 463-51-4  Ketene 
• 61-90-5  L-leucine 
• 67368-37-0  N-acetyl-DL-leucine anilide 
• 99-15-0  N-acetylleucine 
• 108-24-7  acetic anhydride 
• 26090-94-8  N-acetyl-N'-methylleucinamide 
• 32483-15-1  Ac-Leu-NHMe 
• 74-89-5  methylamine 
• 75552-78-2  N-acetyl-O-ethyl-D-leucine 
• 4071-36-7  ethyl N-acetyl-leucinate 
• 84499-82-1  (S)-2-Acetylamino-4-methyl-pentanoic acid; compound with (S)-1-(4-trifluoromethyl-phenyl)-ethylamine 
• 15996-84-6  1-(4-trifluoromethylphenyl)ethylamine