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Fmoc-Cys(tBu)-OH

Fmoc-Cys(tBu)-OH structure

CAS No.: 67436-13-9

Chemical Name:: Fmoc-Cys(tBu)-OH

Synonyms: FMoc-Cys(tBu);FMOC-L-CYS(TBU)-OH;FMOC-CYS(TBU)-OH;FMOC-CYS(BUT)-OH;FMOC-L-CYS(T-BU);FMOC-CYSTEINE(TBU)-OH;FMOC-(S)-T-BUTYL-L-CYS;FMOC-CYS(TBU)-OH, 98+%;FMOC-(S)-TERT-BUTYL-L-CYS;FMOC-S-T-BUTYL-L-CYSTEINE

CBNumber:: CB5138771

Molecular Formula:: C22H25NO4S

Molecular Weight:: 399.51

MDL Number:: MFCD00037130

MOL File:: 67436-13-9.mol

MSDS File:: SDS

TDS File:: TDS

Last updated:2026-04-24 14:59:15

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Fmoc-Cys(tBu)-OH Properties

Melting point	136.0 to 140.0 °C
Boiling point	603.4±55.0 °C(Predicted)
Density	1.237±0.06 g/cm3(Predicted)
storage temp.	2-8°C
Water Solubility	Soluble in water
solubility	Soluble in Chloroform,Dichloromethane,Ethyl Acetate,DMSO,Acetone,etc.
pka	3.49±0.10(Predicted)
form	Crystalline Powder
color	White
BRN	4577031
Major Application	peptide synthesis
InChI	1S/C22H25NO4S/c1-22(2,3)28-13-19(20(24)25)23-21(26)27-12-18-16-10-6-4-8-14(16)15-9-5-7-11-17(15)18/h4-11,18-19H,12-13H2,1-3H3,(H,23,26)(H,24,25)/t19-/m0/s1
InChIKey	IXAYZHCPEYTWHW-IBGZPJMESA-N
SMILES	CC(C)(C)SC[C@H](NC(=O)OCC1c2ccccc2-c3ccccc13)C(O)=O
CAS DataBase Reference	67436-13-9(CAS DataBase Reference)
UNSPSC Code	12352209
NACRES	NA.26

SAFETY

Risk and Safety Statements

PPE

Eyeshields, Gloves, type N95 (US)

Safety Statements

22-24/25

WGK Germany

HS Code

2930 90 16

HazardClass

IRRITANT

Storage Class

11 - Combustible Solids

NFPA 704

	1
0		0

Fmoc-Cys(tBu)-OH price More Price(74)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Sigma-Aldrich	8.52007	Fmoc-Cys(tBu)-OH Novabiochem?	67436-13-9	25g	$360	2026-04-30	Buy
Sigma-Aldrich	8.52007	Fmoc-Cys(tBu)-OH Novabiochem?	67436-13-9	100g	$1070	2026-04-30	Buy
Sigma-Aldrich	47516	Fmoc-Cys(tBu)-OH ≥98.0% (HPLC)	67436-13-9	5G	$182	2026-04-30	Buy
TCI Chemical	F0972	N-[(9H-Fluoren-9-ylmethoxy)carbonyl]-S-(tert-butyl)-L-cysteine >98.0%(HPLC)(T)	67436-13-9	1g	$17	2026-04-30	Buy
TCI Chemical	F0972	N-[(9H-Fluoren-9-ylmethoxy)carbonyl]-S-(tert-butyl)-L-cysteine >98.0%(HPLC)(T)	67436-13-9	5g	$68	2026-04-30	Buy

Product number	Packaging	Price	Buy
8.52007	25g	$360	Buy
8.52007	100g	$1070	Buy
47516	5G	$182	Buy
F0972	1g	$17	Buy
F0972	5g	$68	Buy

Fmoc-Cys(tBu)-OH Chemical Properties, Uses, Production

Chemical Properties

White solid

Uses

Fmoc-Cys(tBu)-OH, is an amino acid building block used in peptide synthesis. With a growing peptide drug market the fast, reliable synthesis of peptides is of great importance.

reaction suitability

reaction type: Fmoc solid-phase peptide synthesis

Fmoc-Cys(tBu)-OH synthesis

Synthesis of Fmoc-Cys(tBu)-OH from Fmoc-OSu

Fmoc-Cys(tBu)-OH Preparation Products And Raw materials

Raw materials

Fmoc-L-Cysteine (Fmoc-Cys-OH)2 S-tert-Butyl-L-cysteine hydrochloride tert-Butanol Fmoc-OSu

9-Fluorenylmethyl chloroformate

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Preparation Products

Fmoc-Cys(tBu)-OH Suppliers

Global Suppliers ( 267)

Supplier	Tel	Email	Country	ProdList	Advantage
J & K SCIENTIFIC LTD.	18210857532 18210857532	jkinfo@jkchemical.com	China	96815	76
Meryer (Shanghai) Chemical Technology Co., Ltd.	4006356688 18621169109	market03@meryer.com	China	40202	62
Alfa Aesar	400-6106006	saleschina@alfa-asia.com	China	30103	84
Energy Chemical	400-0056266 18918157536;	sales8178@energy-chemical.com	China	45000	61
Wuhan Chemwish Technology Co., Ltd	86-027-67849912	sales@chemwish.com	China	35884	56
GL Biochem (Shanghai) Ltd	21-61263452 13641803416	ymbetter@glbiochem.com	China	9981	64
Capot Chemical Co., Ltd	+86 (0) 571 85 58 67 18		China	18187	66
Shanghai Sinch Parmaceuticals Tech. Co. Ltd.	+86-21-54098501	sales@sinch.com.cn	China	11592	64
Sichuan Guanghan Bio-Tech Co., Ltd	+86-28-86127071	info@sino-produce.com	China	400	66
Jia Xing Isenchem Co.,Ltd	0573-85285100 18627885956	isenchem@163.com	China	9388	66

Supplier	Advantage
J & K SCIENTIFIC LTD.	76
Meryer (Shanghai) Chemical Technology Co., Ltd.	62
Alfa Aesar	84
Energy Chemical	61
Wuhan Chemwish Technology Co., Ltd	56
GL Biochem (Shanghai) Ltd	64
Capot Chemical Co., Ltd	66
Shanghai Sinch Parmaceuticals Tech. Co. Ltd.	64
Sichuan Guanghan Bio-Tech Co., Ltd	66
Jia Xing Isenchem Co.,Ltd	66

View Latest Price from Fmoc-Cys(tBu)-OH manufacturers

Image	Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
	2026-09-30	Fmoc-L-Cys(tBu)-OH 67436-13-9		1kg	98%	1T	Sichuan HongRi Pharma-Tech Co.,Ltd
	2019-09-02	Fmoc-Cys(tBu)-OH 67436-13-9	$7.00	1KG	99%	100KG	Career Henan Chemical Co

Fmoc-L-Cys(tBu)-OH
67436-13-9
98%
Sichuan HongRi Pharma-Tech Co.,Ltd

Fmoc-Cys(tBu)-OH
67436-13-9
$7.00
99%
Career Henan Chemical Co

Fmoc-Cys(tBu)-OH Spectrum

Fmoc-Cys(tBu)-OH(67436-13-9)¹HNMR

67436-13-9 (Fmoc-Cys(tBu)-OH) Related Search:

Fmoc-Cys(Mmt)-OH Fmoc-Gln-OPfp Fmoc-D-Cys(Trt)- OPfp Nalpha-FMOC-L-Glutamine Fmoc-S-acetamidomethyl-L-cysteine

FMOC-S-trityl-L-cysteine Fmoc-Cys(Trt)-OPfp Carbonyl sulfide Fmoc-Cys(tBu)-OH Fmoc-S-Trityl-L-penicillamine

L-Cysteine N-FMOC-S-tert-butyl-L-cysteine Fmoc-Cys(DMT)-OH Fmoc-Cys(Mtt)-OH Fmoc-Cys(tBu)-OPfp

Fmoc-Cys(Trt)-OMe Fmoc-Cys(4-methoxytrityl)-OH Fmoc-Cys(Trt)-OH-15N

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FMOC-(R)-2-AMINO-3-(S-T-BUTYLTHIO)BUTANOIC ACID FMOC-(S)-T-BUTYL-L-CYS FMOC-S-T-BUTYL-L-CYSTEINE FMOC-(S)-TERT-BUTYL-L-CYS FMOC-S-TERT-BUTYL-L-CYSTEINE FMOC-L-CYS(T-BU) FMOC-CYS(BUT)-OH FMOC-CYS(TBU)-OH FMOC-CYSTEINE(TBU)-OH n(alpha)-fluorenylmethyloxycarbonyl-s-tert-butylcysteine N-FMOC-S-T-BUTYL-L-CYSTEINE N-ALPHA (9-FLUORENYLMETHOXYCARBONYL)-S-T-BUTYL-L-CYSTEINE N-ALPHA-(9-FLUORENYLMETHYLOXYCARBONYL)-S-TERT-BUTYL-L-CYSTEINE N-ALPHA-FMOC-S-T-BUTYL-L-CYSTEINE N-ALPHA-FMOC-S-TERT-BUTYL-L-CYSTEINE N-ALPHA-(9-FLUORENYLMETHYLOXYCARBONYL)-S-T-BUTYL-L-CYSTEINE Fmoc-S-t-butyl-L-cysteine,Fmoc-Cys(tBu)-OH NALPHA-9-Fluorenylmethoxycarbonyl-S-tert-butyl-L-cysteine N-(9-Fluorenylmethyloxycarbonyl)-S-tert-butyl-L-cysteine FMOC-CYS(TBU)-OH, 98+% (R)-3-tert-Butylsulfanyl-2-(9H-fluoren-9-ylmethoxycarbonylamino)-propionic acid Nalpha-fluoren-9-ylmethoxycarbonyl-S-tert-butyl-L-cysteine N-(9-Fluorenylmethyloxycarbonyl)-S-tert-butyl-L-cysteine ,98% Fmoc-S-tert-butyl-L-cysteine ,98% N^a-FMoc-S-tert-butyl-L-cysteine, 98% (R)-2-((((9H-fluoren-9-yl)Methoxy)carbonyl)aMino)-3-(tert-butylthio)propanoic acid FMoc-Cys(tBu)-OH FMoc-S-tert·butyl-L-cysteine N-[(9H-Fluoren-9-ylmethoxy)carbonyl]-S-(tert-butyl)-L-cysteine Fmoc-(R)-2-amino-3-(S-tert-butyl)propanoic acid Fmoc-S-tert-butyl-L-cysteine≥ 99% (HPLC) (2R)-3-(tert-butylsulfanyl)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)propanoic acid (9H-Fluoren-9-yl)MethOxy]Carbonyl Cys(tBu)-OH N-[(9H-Fluoren-9-ylmethoxy)carbonyl]-S-(tert-butyl)-L-cysteine > L-Cysteine, S-(1,1-dimethylethyl)-N-[(9H-fluoren-9-ylmethoxy)carbonyl]- Fmoc-Cys(tBu)-OH USP/EP/BP Nα-Fmoc-S-tert-butyl-L-cysteine N_α-Fmoc-S-tert-butyl-L-cysteine S-(1,1-Dimethylethyl)-N-[(9H-fluoren-9-ylmethoxy)carbonyl]-L-cysteine N - (9-fluoromethoxycarbonyl) - S-tert butyl-L-cysteine N-Fmoc-S-tert-butyl-L-cysteine, 98% FMOC-L-CYS(TBU)-OH FMoc-Cys(tBu) 67436-13-9 C22H25NO4S Analytical Chromatography Product Catalog Alphabetic Analytical Standards FM - FZ Cysteine [Cys, C] Fmoc-Amino Acids and Derivatives Fmoc-Amino acid series Amino Acids