同位素标记物 - 上海智溯科生物科技有限公司

首页/同位素标记物

D10-4-Ethylphenol
D10-4-Ethylphenol

货号：ISX-ST-6445
品牌：isospex

D10-4-Ethylphenol
D10-4-Ethylphenol

货号：ISX-ST-6445
品牌：isospex
D4-2-Ethoxyethanol
D4-2-Ethoxyethanol

货号：ISX-ST-6444
品牌：isospex

D4-2-Ethoxyethanol
D4-2-Ethoxyethanol

货号：ISX-ST-6444
品牌：isospex
phenyl-D5-Enalaprilat
phenyl-D5-Enalaprilat

货号：ISX-ST-6443
品牌：isospex

phenyl-D5-Enalaprilat
phenyl-D5-Enalaprilat

货号：ISX-ST-6443
品牌：isospex
D4-Sulfachloropyrazine
D4-Sulfachloropyrazine

货号：ISX-ST-6442
品牌：isospex

D4-Sulfachloropyrazine
D4-Sulfachloropyrazine

货号：ISX-ST-6442
品牌：isospex
D5-Quinocetone
D5-Quinocetone

货号：ISX-ST-6441
品牌：isospex

D5-Quinocetone
D5-Quinocetone

货号：ISX-ST-6441
品牌：isospex
D3-Sertraline HCI
D3-Sertraline HCI

货号：ISX-ST-6440
品牌：isospex

D3-Sertraline HCI
D3-Sertraline HCI

货号：ISX-ST-6440
品牌：isospex
D6-β-Myrcene
D6-β-Myrcene

货号：ISX-ST-6439
品牌：isospex

D6-β-Myrcene
D6-β-Myrcene

货号：ISX-ST-6439
品牌：isospex
13C2-Acetic Acid
13C2-Acetic Acid

货号：ISX-ST-6438
品牌：isospex

13C2-Acetic Acid
13C2-Acetic Acid

货号：ISX-ST-6438
品牌：isospex
Sodium pyruvate-1,2-13C2
Sodium pyruvate-1,2-13C2

货号：ISX-ST-6437
品牌：isospex

Sodium pyruvate-1,2-13C2
Sodium pyruvate-1,2-13C2

货号：ISX-ST-6437
品牌：isospex
D4-Dolutegravir
D4-Dolutegravir

货号：ISX-ST-6436
品牌：isospex

D4-Dolutegravir
D4-Dolutegravir

货号：ISX-ST-6436
品牌：isospex
D5-N-isopropyl methacrylamide
D5-N-isopropyl methacrylamide

货号：ISX-ST-6435
品牌：isospex

D5-N-isopropyl methacrylamide
D5-N-isopropyl methacrylamide

货号：ISX-ST-6435
品牌：isospex
13C6-2,4-Dihydroxybenzophenone
13C6-2,4-Dihydroxybenzophenone

货号：ISX-ST-6434
品牌：isospex

13C6-2,4-Dihydroxybenzophenone
13C6-2,4-Dihydroxybenzophenone

货号：ISX-ST-6434
品牌：isospex
15N2-L-Glutamine
15N2-L-Glutamine

货号：ISX-ST-6433
品牌：isospex

15N2-L-Glutamine
15N2-L-Glutamine

货号：ISX-ST-6433
品牌：isospex
D12-Tris (2-chloroethyl)phosphate
D12-Tris (2-chloroethyl)phosphate

货号：ISX-ST-6432
品牌：isospex

D12-Tris (2-chloroethyl)phosphate
D12-Tris (2-chloroethyl)phosphate

货号：ISX-ST-6432
品牌：isospex
D3- Scopolamine Hydrobromide Hydrate
D3- Scopolamine Hydrobromide Hydrate

货号：ISX-ST-6431
品牌：isospex

D3- Scopolamine Hydrobromide Hydrate
D3- Scopolamine Hydrobromide Hydrate

货号：ISX-ST-6431
品牌：isospex
D3-Ethylamine Hydrochloride
D3-Ethylamine Hydrochloride

货号：ISX-ST-6430
品牌：isospex

D3-Ethylamine Hydrochloride
D3-Ethylamine Hydrochloride

货号：ISX-ST-6430
品牌：isospex
D12-BenzoBFluoranthene
D12-BenzoBFluoranthene

货号：ISX-ST-6429
品牌：isospex

D12-BenzoBFluoranthene
D12-BenzoBFluoranthene

货号：ISX-ST-6429
品牌：isospex
D23-Lauric Acid
D23-Lauric Acid

货号：ISX-ST-6428
品牌：isospex

D23-Lauric Acid
D23-Lauric Acid

货号：ISX-ST-6428
品牌：isospex
13C12-3,3',4,4',5-Pentabromodiphenyl ether (BDE-126)
13C12-3,3',4,4',5-Pentabromodiphenyl ether (BDE-126)

货号：ISX-ST-6427
品牌：isospex

13C12-3,3',4,4',5-Pentabromodiphenyl ether (BDE-126)
13C12-3,3',4,4',5-Pentabromodiphenyl ether (BDE-126)

货号：ISX-ST-6427
品牌：isospex
D3-Homovanillic Acid
D3-Homovanillic Acid

货号：ISX-ST-6426
品牌：isospex

D3-Homovanillic Acid
D3-Homovanillic Acid

货号：ISX-ST-6426
品牌：isospex
2,4,16,16-D4-17β-Estradiol
2,4,16,16-D4-17β-Estradiol

货号：ISX-ST-6425
品牌：isospex

2,4,16,16-D4-17β-Estradiol
2,4,16,16-D4-17β-Estradiol

货号：ISX-ST-6425
品牌：isospex
D4-Tipranavir
D4-Tipranavir

货号：ISX-ST-6424
品牌：isospex

D4-Tipranavir
D4-Tipranavir

货号：ISX-ST-6424
品牌：isospex
1-13C-Ethanol (<6% H2O)
1-13C-Ethanol (<6% H2O)

货号：ISX-ST-6423
品牌：isospex

1-13C-Ethanol (<6% H2O)
1-13C-Ethanol (<6% H2O)

货号：ISX-ST-6423
品牌：isospex
D4-Taurolithocholic Acid-3-Sulfate Sodium Salt
D4-Taurolithocholic Acid-3-Sulfate Sodium Salt

货号：ISX-ST-6422
品牌：isospex

D4-Taurolithocholic Acid-3-Sulfate Sodium Salt
D4-Taurolithocholic Acid-3-Sulfate Sodium Salt

货号：ISX-ST-6422
品牌：isospex
D23- HydrochlorideN-3- (Dimethylamino)propyllauramide Hydrochloride
D23- HydrochlorideN-3- (Dimethylamino)propyllauramide Hydrochloride

货号：ISX-ST-6421
品牌：isospex

D23- HydrochlorideN-3- (Dimethylamino)propyllauramide Hydrochloride
D23- HydrochlorideN-3- (Dimethylamino)propyllauramide Hydrochloride

货号：ISX-ST-6421
品牌：isospex
D4-4-Chlorobenzenesulfonic Acid Sodium Salt
D4-4-Chlorobenzenesulfonic Acid Sodium Salt

货号：ISX-ST-6420
品牌：isospex

D4-4-Chlorobenzenesulfonic Acid Sodium Salt
D4-4-Chlorobenzenesulfonic Acid Sodium Salt

货号：ISX-ST-6420
品牌：isospex
D4-delta-Decalactone
D4-delta-Decalactone

货号：ISX-ST-6419
品牌：isospex

D4-delta-Decalactone
D4-delta-Decalactone

货号：ISX-ST-6419
品牌：isospex
D9-Ethyl 3-methylbutyrate
D9-Ethyl 3-methylbutyrate

货号：ISX-ST-6418
品牌：isospex

D9-Ethyl 3-methylbutyrate
D9-Ethyl 3-methylbutyrate

货号：ISX-ST-6418
品牌：isospex
D6-tert-Butanol
D6-tert-Butanol

货号：ISX-ST-6417
品牌：isospex

D6-tert-Butanol
D6-tert-Butanol

货号：ISX-ST-6417
品牌：isospex
D4-L-Citrulline
D4-L-Citrulline

货号：ISX-ST-6416
品牌：isospex

D4-L-Citrulline
D4-L-Citrulline

货号：ISX-ST-6416
品牌：isospex
13C4;15N2)-L-Asparagine-N-Fmoc, N-Beta-Trityl
13C4;15N2)-L-Asparagine-N-Fmoc, N-Beta-Trityl

货号：ISX-ST-6415
品牌：isospex

13C4;15N2)-L-Asparagine-N-Fmoc, N-Beta-Trityl
13C4;15N2)-L-Asparagine-N-Fmoc, N-Beta-Trityl

货号：ISX-ST-6415
品牌：isospex
D3-2-Methyl-pyridine
D3-2-Methyl-pyridine

货号：ISX-ST-6414
品牌：isospex

D3-2-Methyl-pyridine
D3-2-Methyl-pyridine

货号：ISX-ST-6414
品牌：isospex
13C8-Perfluorooctanoic Acid (PFOA)
13C8-Perfluorooctanoic Acid (PFOA)

货号：ISX-ST-6413
品牌：isospex

13C8-Perfluorooctanoic Acid (PFOA)
13C8-Perfluorooctanoic Acid (PFOA)

货号：ISX-ST-6413
品牌：isospex
D7- (+)-Lycopsamine N-Oxide
D7- (+)-Lycopsamine N-Oxide

货号：ISX-ST-6412
品牌：isospex

D7- (+)-Lycopsamine N-Oxide
D7- (+)-Lycopsamine N-Oxide

货号：ISX-ST-6412
品牌：isospex
D36-1-Phenylpentadecane
D36-1-Phenylpentadecane

货号：ISX-ST-6411
品牌：isospex

D36-1-Phenylpentadecane
D36-1-Phenylpentadecane

货号：ISX-ST-6411
品牌：isospex
13C2-Furaneol
13C2-Furaneol

货号：ISX-ST-6410
品牌：isospex

13C2-Furaneol
13C2-Furaneol

货号：ISX-ST-6410
品牌：isospex
13C,D2-Paraformaldehyde
13C,D2-Paraformaldehyde

货号：ISX-ST-6409
品牌：isospex

13C,D2-Paraformaldehyde
13C,D2-Paraformaldehyde

货号：ISX-ST-6409
品牌：isospex
UL-13C4-D-erythrose
UL-13C4-D-erythrose

货号：ISX-ST-6408
品牌：isospex

UL-13C4-D-erythrose
UL-13C4-D-erythrose

货号：ISX-ST-6408
品牌：isospex
D8-Bis (2-chloroethyl)-amine HCl
D8-Bis (2-chloroethyl)-amine HCl

货号：ISX-ST-6407
品牌：isospex

D8-Bis (2-chloroethyl)-amine HCl
D8-Bis (2-chloroethyl)-amine HCl

货号：ISX-ST-6407
品牌：isospex
U-13C9,15N-Fmoc-Tyr(tBu)-OH
U-13C9,15N-Fmoc-Tyr(tBu)-OH

货号：ISX-ST-6406
品牌：isospex

U-13C9,15N-Fmoc-Tyr(tBu)-OH
U-13C9,15N-Fmoc-Tyr(tBu)-OH

货号：ISX-ST-6406
品牌：isospex

上一页 1 2...109 110 111112113 114 115...272 273 下一页

D10-4-EthylphenolD10-4-Ethylphenol

D10-4-EthylphenolD10-4-Ethylphenol

D4-2-EthoxyethanolD4-2-Ethoxyethanol

D4-2-EthoxyethanolD4-2-Ethoxyethanol

phenyl-D5-Enalaprilatphenyl-D5-Enalaprilat

phenyl-D5-Enalaprilatphenyl-D5-Enalaprilat

D4-SulfachloropyrazineD4-Sulfachloropyrazine

D4-SulfachloropyrazineD4-Sulfachloropyrazine

D5-QuinocetoneD5-Quinocetone

D5-QuinocetoneD5-Quinocetone

D3-Sertraline HCID3-Sertraline HCI

D3-Sertraline HCID3-Sertraline HCI

D6-β-MyrceneD6-β-Myrcene

D6-β-MyrceneD6-β-Myrcene

13C2-Acetic Acid13C2-Acetic Acid

13C2-Acetic Acid13C2-Acetic Acid

Sodium pyruvate-1,2-13C2Sodium pyruvate-1,2-13C2

Sodium pyruvate-1,2-13C2Sodium pyruvate-1,2-13C2

D4-DolutegravirD4-Dolutegravir

D4-DolutegravirD4-Dolutegravir

D5-N-isopropyl methacrylamideD5-N-isopropyl methacrylamide

D5-N-isopropyl methacrylamideD5-N-isopropyl methacrylamide

13C6-2,4-Dihydroxybenzophenone13C6-2,4-Dihydroxybenzophenone

13C6-2,4-Dihydroxybenzophenone13C6-2,4-Dihydroxybenzophenone

15N2-L-Glutamine15N2-L-Glutamine

15N2-L-Glutamine15N2-L-Glutamine

D12-Tris (2-chloroethyl)phosphateD12-Tris (2-chloroethyl)phosphate

D12-Tris (2-chloroethyl)phosphateD12-Tris (2-chloroethyl)phosphate

D3- Scopolamine Hydrobromide HydrateD3- Scopolamine Hydrobromide Hydrate

D3- Scopolamine Hydrobromide HydrateD3- Scopolamine Hydrobromide Hydrate

D3-Ethylamine HydrochlorideD3-Ethylamine Hydrochloride

D3-Ethylamine HydrochlorideD3-Ethylamine Hydrochloride

D12-BenzoBFluorantheneD12-BenzoBFluoranthene

D12-BenzoBFluorantheneD12-BenzoBFluoranthene

D23-Lauric AcidD23-Lauric Acid

D23-Lauric AcidD23-Lauric Acid

13C12-3,3',4,4',5-Pentabromodiphenyl ether (BDE-126)13C12-3,3',4,4',5-Pentabromodiphenyl ether (BDE-126)

13C12-3,3',4,4',5-Pentabromodiphenyl ether (BDE-126)13C12-3,3',4,4',5-Pentabromodiphenyl ether (BDE-126)

D3-Homovanillic AcidD3-Homovanillic Acid

D3-Homovanillic AcidD3-Homovanillic Acid

2,4,16,16-D4-17β-Estradiol2,4,16,16-D4-17β-Estradiol

2,4,16,16-D4-17β-Estradiol2,4,16,16-D4-17β-Estradiol

D4-TipranavirD4-Tipranavir

D4-TipranavirD4-Tipranavir

1-13C-Ethanol (<6% H2O)1-13C-Ethanol (<6% H2O)

1-13C-Ethanol (<6% H2O)1-13C-Ethanol (<6% H2O)

D4-Taurolithocholic Acid-3-Sulfate Sodium SaltD4-Taurolithocholic Acid-3-Sulfate Sodium Salt

D4-Taurolithocholic Acid-3-Sulfate Sodium SaltD4-Taurolithocholic Acid-3-Sulfate Sodium Salt

D23- HydrochlorideN-3- (Dimethylamino)propyllauramide HydrochlorideD23- HydrochlorideN-3- (Dimethylamino)propyllauramide Hydrochloride

D23- HydrochlorideN-3- (Dimethylamino)propyllauramide HydrochlorideD23- HydrochlorideN-3- (Dimethylamino)propyllauramide Hydrochloride

D4-4-Chlorobenzenesulfonic Acid Sodium SaltD4-4-Chlorobenzenesulfonic Acid Sodium Salt

D4-4-Chlorobenzenesulfonic Acid Sodium SaltD4-4-Chlorobenzenesulfonic Acid Sodium Salt

D4-delta-DecalactoneD4-delta-Decalactone

D4-delta-DecalactoneD4-delta-Decalactone

D9-Ethyl 3-methylbutyrateD9-Ethyl 3-methylbutyrate

D9-Ethyl 3-methylbutyrateD9-Ethyl 3-methylbutyrate

D6-tert-ButanolD6-tert-Butanol

D6-tert-ButanolD6-tert-Butanol

D4-L-CitrullineD4-L-Citrulline

D4-L-CitrullineD4-L-Citrulline

13C4;15N2)-L-Asparagine-N-Fmoc, N-Beta-Trityl13C4;15N2)-L-Asparagine-N-Fmoc, N-Beta-Trityl

13C4;15N2)-L-Asparagine-N-Fmoc, N-Beta-Trityl13C4;15N2)-L-Asparagine-N-Fmoc, N-Beta-Trityl

D3-2-Methyl-pyridineD3-2-Methyl-pyridine

D3-2-Methyl-pyridineD3-2-Methyl-pyridine

13C8-Perfluorooctanoic Acid (PFOA)13C8-Perfluorooctanoic Acid (PFOA)

13C8-Perfluorooctanoic Acid (PFOA)13C8-Perfluorooctanoic Acid (PFOA)

D7- (+)-Lycopsamine N-OxideD7- (+)-Lycopsamine N-Oxide

D7- (+)-Lycopsamine N-OxideD7- (+)-Lycopsamine N-Oxide

D36-1-PhenylpentadecaneD36-1-Phenylpentadecane

D36-1-PhenylpentadecaneD36-1-Phenylpentadecane

13C2-Furaneol13C2-Furaneol

13C2-Furaneol13C2-Furaneol

13C,D2-Paraformaldehyde13C,D2-Paraformaldehyde

13C,D2-Paraformaldehyde13C,D2-Paraformaldehyde

UL-13C4-D-erythroseUL-13C4-D-erythrose

UL-13C4-D-erythroseUL-13C4-D-erythrose

D8-Bis (2-chloroethyl)-amine HClD8-Bis (2-chloroethyl)-amine HCl

D8-Bis (2-chloroethyl)-amine HClD8-Bis (2-chloroethyl)-amine HCl

U-13C9,15N-Fmoc-Tyr(tBu)-OHU-13C9,15N-Fmoc-Tyr(tBu)-OH

U-13C9,15N-Fmoc-Tyr(tBu)-OHU-13C9,15N-Fmoc-Tyr(tBu)-OH

D10-4-Ethylphenol
D10-4-Ethylphenol

D10-4-Ethylphenol
D10-4-Ethylphenol

D4-2-Ethoxyethanol
D4-2-Ethoxyethanol

D4-2-Ethoxyethanol
D4-2-Ethoxyethanol

phenyl-D5-Enalaprilat
phenyl-D5-Enalaprilat

phenyl-D5-Enalaprilat
phenyl-D5-Enalaprilat

D4-Sulfachloropyrazine
D4-Sulfachloropyrazine

D4-Sulfachloropyrazine
D4-Sulfachloropyrazine

D5-Quinocetone
D5-Quinocetone

D5-Quinocetone
D5-Quinocetone

D3-Sertraline HCI
D3-Sertraline HCI

D3-Sertraline HCI
D3-Sertraline HCI

D6-β-Myrcene
D6-β-Myrcene

D6-β-Myrcene
D6-β-Myrcene

13C2-Acetic Acid
13C2-Acetic Acid

13C2-Acetic Acid
13C2-Acetic Acid

Sodium pyruvate-1,2-13C2
Sodium pyruvate-1,2-13C2

Sodium pyruvate-1,2-13C2
Sodium pyruvate-1,2-13C2

D4-Dolutegravir
D4-Dolutegravir

D4-Dolutegravir
D4-Dolutegravir

D5-N-isopropyl methacrylamide
D5-N-isopropyl methacrylamide

D5-N-isopropyl methacrylamide
D5-N-isopropyl methacrylamide

13C6-2,4-Dihydroxybenzophenone
13C6-2,4-Dihydroxybenzophenone

13C6-2,4-Dihydroxybenzophenone
13C6-2,4-Dihydroxybenzophenone

15N2-L-Glutamine
15N2-L-Glutamine

15N2-L-Glutamine
15N2-L-Glutamine

D12-Tris (2-chloroethyl)phosphate
D12-Tris (2-chloroethyl)phosphate

D12-Tris (2-chloroethyl)phosphate
D12-Tris (2-chloroethyl)phosphate

D3- Scopolamine Hydrobromide Hydrate
D3- Scopolamine Hydrobromide Hydrate

D3- Scopolamine Hydrobromide Hydrate
D3- Scopolamine Hydrobromide Hydrate

D3-Ethylamine Hydrochloride
D3-Ethylamine Hydrochloride

D3-Ethylamine Hydrochloride
D3-Ethylamine Hydrochloride

D12-BenzoBFluoranthene
D12-BenzoBFluoranthene

D12-BenzoBFluoranthene
D12-BenzoBFluoranthene

D23-Lauric Acid
D23-Lauric Acid

D23-Lauric Acid
D23-Lauric Acid

13C12-3,3',4,4',5-Pentabromodiphenyl ether (BDE-126)
13C12-3,3',4,4',5-Pentabromodiphenyl ether (BDE-126)

13C12-3,3',4,4',5-Pentabromodiphenyl ether (BDE-126)
13C12-3,3',4,4',5-Pentabromodiphenyl ether (BDE-126)

D3-Homovanillic Acid
D3-Homovanillic Acid

D3-Homovanillic Acid
D3-Homovanillic Acid

2,4,16,16-D4-17β-Estradiol
2,4,16,16-D4-17β-Estradiol

2,4,16,16-D4-17β-Estradiol
2,4,16,16-D4-17β-Estradiol

D4-Tipranavir
D4-Tipranavir

D4-Tipranavir
D4-Tipranavir

1-13C-Ethanol (<6% H2O)
1-13C-Ethanol (<6% H2O)

1-13C-Ethanol (<6% H2O)
1-13C-Ethanol (<6% H2O)

D4-Taurolithocholic Acid-3-Sulfate Sodium Salt
D4-Taurolithocholic Acid-3-Sulfate Sodium Salt

D4-Taurolithocholic Acid-3-Sulfate Sodium Salt
D4-Taurolithocholic Acid-3-Sulfate Sodium Salt

D23- HydrochlorideN-3- (Dimethylamino)propyllauramide Hydrochloride
D23- HydrochlorideN-3- (Dimethylamino)propyllauramide Hydrochloride

D23- HydrochlorideN-3- (Dimethylamino)propyllauramide Hydrochloride
D23- HydrochlorideN-3- (Dimethylamino)propyllauramide Hydrochloride

D4-4-Chlorobenzenesulfonic Acid Sodium Salt
D4-4-Chlorobenzenesulfonic Acid Sodium Salt

D4-4-Chlorobenzenesulfonic Acid Sodium Salt
D4-4-Chlorobenzenesulfonic Acid Sodium Salt

D4-delta-Decalactone
D4-delta-Decalactone

D4-delta-Decalactone
D4-delta-Decalactone

D9-Ethyl 3-methylbutyrate
D9-Ethyl 3-methylbutyrate

D9-Ethyl 3-methylbutyrate
D9-Ethyl 3-methylbutyrate

D6-tert-Butanol
D6-tert-Butanol

D6-tert-Butanol
D6-tert-Butanol

D4-L-Citrulline
D4-L-Citrulline

D4-L-Citrulline
D4-L-Citrulline

13C4;15N2)-L-Asparagine-N-Fmoc, N-Beta-Trityl
13C4;15N2)-L-Asparagine-N-Fmoc, N-Beta-Trityl

13C4;15N2)-L-Asparagine-N-Fmoc, N-Beta-Trityl
13C4;15N2)-L-Asparagine-N-Fmoc, N-Beta-Trityl

D3-2-Methyl-pyridine
D3-2-Methyl-pyridine

D3-2-Methyl-pyridine
D3-2-Methyl-pyridine

13C8-Perfluorooctanoic Acid (PFOA)
13C8-Perfluorooctanoic Acid (PFOA)

13C8-Perfluorooctanoic Acid (PFOA)
13C8-Perfluorooctanoic Acid (PFOA)

D7- (+)-Lycopsamine N-Oxide
D7- (+)-Lycopsamine N-Oxide

D7- (+)-Lycopsamine N-Oxide
D7- (+)-Lycopsamine N-Oxide

D36-1-Phenylpentadecane
D36-1-Phenylpentadecane

D36-1-Phenylpentadecane
D36-1-Phenylpentadecane

13C2-Furaneol
13C2-Furaneol

13C2-Furaneol
13C2-Furaneol

13C,D2-Paraformaldehyde
13C,D2-Paraformaldehyde

13C,D2-Paraformaldehyde
13C,D2-Paraformaldehyde

UL-13C4-D-erythrose
UL-13C4-D-erythrose

UL-13C4-D-erythrose
UL-13C4-D-erythrose

D8-Bis (2-chloroethyl)-amine HCl
D8-Bis (2-chloroethyl)-amine HCl

D8-Bis (2-chloroethyl)-amine HCl
D8-Bis (2-chloroethyl)-amine HCl

U-13C9,15N-Fmoc-Tyr(tBu)-OH
U-13C9,15N-Fmoc-Tyr(tBu)-OH

U-13C9,15N-Fmoc-Tyr(tBu)-OH
U-13C9,15N-Fmoc-Tyr(tBu)-OH