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S-Benzyl-L-cysteine

S-Benzyl-L-cysteine structure

CAS No.: 3054-01-1

Chemical Name:: S-Benzyl-L-cysteine

Synonyms: H-CYS(BZL)-OH;H-L-CYS(BZL)-OH;s-benzylcysteine;(S)-BENZYL-L-CYS;CYSTEINE(BZL)-OH;BENZYL-S-CYSTEINE;Benzylcysteine,98%;D-S-Benzylcysteine;L-S-benzylcysteine;S-BENZYL-L-CYSTEINE

CBNumber:: CB5417063

Molecular Formula:: C10H13NO2S

Molecular Weight:: 211.28

MDL Number:: MFCD00002613

MOL File:: 3054-01-1.mol

MSDS File:: SDS

TDS File:: TDS

Last updated:2026-05-28 03:50:54

Product description	Number	Pack Size	Price
S-Benzyl-L-cysteine 97%	B19800	10g	$68.2
S-Benzyl-L-cysteine >98.0%(HPLC)(T)	B0865	1g	$14
S-Benzyl-L-cysteine >98.0%(HPLC)(T)	B0865	5g	$18
S-Benzyl-L-cysteine Asreported	264748	100g	$232
S-Benzyl-L-cysteine Asreported	264748	250g	$343
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S-Benzyl-L-cysteine Properties

Melting point	214 °C (dec.) (lit.)
alpha	26 º (c=0.4, 1N NaOH)
Boiling point	379.2±42.0 °C(Predicted)
Density	1.2079 (rough estimate)
refractive index	29 ° (C=1, 1mol/L NaOH)
storage temp.	Sealed in dry,Room Temperature
solubility	almost transparency in 1mol/L NaOH
pka	2.10±0.10(Predicted)
form	powder to crystaline
color	White to Almost white
optical activity	[α]20/D +23°, c = 2 in 1 M NaOH
BRN	1879358
Major Application	detection peptide synthesis
InChI	1S/C10H13NO2S/c11-9(10(12)13)7-14-6-8-4-2-1-3-5-8/h1-5,9H,6-7,11H2,(H,12,13)/t9-/m0/s1
InChIKey	GHBAYRBVXCRIHT-VIFPVBQESA-N
SMILES	N[C@@H](CSCc1ccccc1)C(O)=O
CAS DataBase Reference	3054-01-1(CAS DataBase Reference)
FDA UNII	9VRE13M548
EPA Substance Registry System	L-Cysteine, S-(phenylmethyl)- (3054-01-1)
UNSPSC Code	12352209
NACRES	NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)

GHS07

Signal word

Warning

Hazard statements

H302-H315-H319-H335

Precautionary statements

P261-P305+P351+P338

PPE

Eyeshields, Gloves, type N95 (US)

Risk Statements

36/37/38

Safety Statements

22-24/25-28-26

WGK Germany

TSCA

TSCA listed

HS Code

29309090

Storage Class

11 - Combustible Solids

NFPA 704

	1
0		0

S-Benzyl-L-cysteine price More Price(66)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Sigma-Aldrich	B19800	S-Benzyl-L-cysteine 97%	3054-01-1	10g	$68.2	2026-04-30	Buy
TCI Chemical	B0865	S-Benzyl-L-cysteine >98.0%(HPLC)(T)	3054-01-1	1g	$14	2021-12-16	Buy
TCI Chemical	B0865	S-Benzyl-L-cysteine >98.0%(HPLC)(T)	3054-01-1	5g	$18	2023-06-20	Buy
Usbiological	264748	S-Benzyl-L-cysteine Asreported	3054-01-1	100g	$232	2026-06-03	Buy
Usbiological	264748	S-Benzyl-L-cysteine Asreported	3054-01-1	250g	$343	2026-06-03	Buy

Product number	Packaging	Price	Buy
B19800	10g	$68.2	Buy
B0865	1g	$14	Buy
B0865	5g	$18	Buy
264748	100g	$232	Buy
264748	250g	$343	Buy

S-Benzyl-L-cysteine Chemical Properties,Uses,Production

Chemical Properties

WHITE POWDER

Uses

detection
peptide synthesis

reaction suitability

reaction type: solution phase peptide synthesis

Synthesis

52-89-1

100-39-0

3054-01-1

The general procedure for the synthesis of S-benzyl-L-cysteine from L-cysteine hydrochloride and benzyl bromide was as follows: to a rapidly stirred mixture of 2N sodium hydroxide solution (15 mL) and ethanol (35 mL), L-cysteine hydrochloride (1.3 g, 8.2 mmol) and benzyl bromide (0.98 mL, 8.2 mmol) were added sequentially. After the reaction was carried out for 1 h, concentrated hydrochloric acid was slowly added to neutralize the reaction mixture to pH 6-7. Subsequently, the precipitate was collected by filtration and washed sequentially with water, ethanol, and ether to yield S-benzyl-L-cysteine (7) as a white powdery product (1.87 g, 92% yield) with a melting point of 210-212 °C (literature value: 215-216 °C).

References

[1] European Journal of Medicinal Chemistry, 2012, vol. 55, p. 176 - 187,12
[2] Journal of Pharmaceutical Sciences, 1984, vol. 73, # 4, p. 559 - 561
[3] Organic Preparations and Procedures International, 1991, vol. 23, # 1, p. 93 - 102

S-Benzyl-L-cysteine Preparation Products And Raw materials

Raw materials

Benzyl chloride L-Cysteine monohydrochloride Benzyl bromide Sodium hydroxide Ethanol

Preparation Products

BUCILLAMINE N-(Acetyl-d3)-S-benzyl-L-cysteine

S-Benzyl-L-cysteine Suppliers

Global( 207)Suppliers

Supplier	Tel	Email	Country	ProdList	Advantage
ZHENGZHOU JIUYI TIME NEW MATERIALS CO,.LTD	+86-13017695106 +86-13676922317	jiuyitime@fdachem.com	China	16512	58
Capot Chemical Co.,Ltd.	+86-（0）57185586718 +86-13336195806	sales@capot.com	China	29640	60
ATK CHEMICAL COMPANY LIMITED	+undefined-21-51877795	ivan@atkchemical.com	China	33024	60
career henan chemical co	+86-0371-86658258 +8613203830695	sales@coreychem.com	China	29815	58
Xiamen AmoyChem Co., Ltd	+86-86-5926051114 +8615060885618	sales@amoychem.com	China	6366	58
Alchem Pharmtech,Inc.	8485655694	sales@alchempharmtech.com	United States	63687	58
SIMAGCHEM CORP	+86-5922680277 +86-13806087780	sale@simagchem.com	China	17346	58
Hefei TNJ Chemical Industry Co.,Ltd.	+86-0551-65418671 +8618949823763	sales@tnjchem.com	China	34563	58
GL Biochem(Binhai) Ltd.	+86-021-61263370 +8615301650015	wuqiuyan@glschina.com	China	2975	58
Shanghai UCHEM Inc.	+862156762820 +86-13564624040	sales@myuchem.com	China	8741	58

Supplier	Advantage
ZHENGZHOU JIUYI TIME NEW MATERIALS CO,.LTD	58
Capot Chemical Co.,Ltd.	60
ATK CHEMICAL COMPANY LIMITED	60
career henan chemical co	58
Xiamen AmoyChem Co., Ltd	58
Alchem Pharmtech,Inc.	58
SIMAGCHEM CORP	58
Hefei TNJ Chemical Industry Co.,Ltd.	58
GL Biochem(Binhai) Ltd.	58
Shanghai UCHEM Inc.	58

View Lastest Price from S-Benzyl-L-cysteine manufacturers

Image	Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
	2026-04-17	S-Benzyl-L-cysteine 3054-01-1	$2.00-5.00	1kg	99%	100kg	ZHENGZHOU JIUYI TIME NEW MATERIALS CO,.LTD
	2019-07-06	S-Benzyl-L-cysteine 3054-01-1	$1.00	1KG	95%-99.99%	1KG-10MT	Career Henan Chemical Co

S-Benzyl-L-cysteine
3054-01-1
$2.00-5.00
99%
ZHENGZHOU JIUYI TIME NEW MATERIALS CO,.LTD

S-Benzyl-L-cysteine
3054-01-1
$1.00
95%-99.99%
Career Henan Chemical Co

S-Benzyl-L-cysteine Spectrum

S-Benzyl-L-cysteine(3054-01-1)MS S-Benzyl-L-cysteine(3054-01-1)IR1 S-Benzyl-L-cysteine(3054-01-1)IR2 S-Benzyl-L-cysteine(3054-01-1)Raman

3054-01-1(S-Benzyl-L-cysteine)Related Search:

L-Cysteine Benzyl bromide H-CYS(BZL)-OME HCL Benzyl alcohol Benzyl benzoate

L-Cystine DL-Homocysteine N-Acetyl-L-cysteine S-BENZYL-L-CYSTEINE 7-AMIDO-4-METHYLCOUMARIN S-BENZYL-L-CYSTEINE BENZYL ESTER HYDROCHLORIDE

L-CYSTEINE HCL ANHYDROUS N-Fmoc-S-(4-methoxybenzyl)-L-cysteine 2-Amino-3-[(4-methoxybenzyl)thio]propanoic acid NA-BENZYLOXYCARBONYL-S-BENZYL-L-CYSTEINE,N-cbz-S-benzyl-L-cysteine crystalline,N-Benzyloxycarbonyl-S-benzyl-L-cysteine ,Z-S-BENZYL-L-CYSTEINE Boc-S-(4-methylbenzyl)-L-cysteine

FMOC-CYS(4-MBZL)-OH FMOC-D-CYS(MBZL)-OH FMOC-CYS(BZL)-OH

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s-(phenylmethyl)-l-cystein s-benzylcysteine 3-(BENZYLTHIO)-L-(+)-ALANINE L-CYSTEINE, S-(PHENYLMETHYL)- H-L-CYS(BZL)-OH CYSTEINE(BZL)-OH (S)-BENZYL-L-CYS S-BENZYL-L-(+)-CYSTEINE S-BENZYL-L-CYSTEINE (R)-2-AMINO-3-BENZYLSULFANYL-PROPIONIC ACID (S)-2-AMINO-3-(S-BENZYLTHIO)PROPANOIC ACID (R)-2-AMINO-3-(S-BENZYLTHIO)PROPANOIC ACID Benzylcysteine,98% D-S-Benzylcysteine (S)-2-amino-3-(benzylthio) propanoic acid S-BENZYL-L-CYSTEINE SIGMA GRADECRYSTALLI NE BENZYL-S-CYSTEINE L-S-benzylcysteine S-Benzyl-L-cysteine,99% (R)-S-Benzylcysteine S-Benzyl-(R)-cycteine S-Phenylmethyl-L-cysteine S-Benzyl-L-cysteine 97% (2R)-2-amino-3-(benzylsulfanyl)propanoic acid (2R)-2-ammonio-3-(phenylmethylthio)propanoate S-Benzyl-L-cysteine USP/EP/BP S-Benzyl-L-cysteine H-CYS(BZL)-OH 3054-01-1 3054-11-1 421-49-2 3054-1-1 3054-01-0 3054-01-01 421492 C6H5CH2SCH2CHNH2CO2H Amino Acid Derivatives Cysteine/Cystine Peptide Synthesis Specialty Synthesis Amino Acids Derivatives PROTECTED AMINO ACID & PEPTIDES Amino Acids Chiral Reagent Cysteine [Cys, C] Amino Acids and Derivatives Cysteine/Cystine Amino Acid Derivatives Peptide Synthesis