ChemicalBook > CAS DataBase List > DL-Cysteine

DL-Cysteine

Product Name
DL-Cysteine
CAS No.
3374-22-9
Chemical Name
DL-Cysteine
Synonyms
DL-CYSTEIN;NSC 63864;DL-CYSTEINE;H-DL-CYS-OH;dl-cysteina;rac-cysteine;DL-Cystenine;Cysteine, DL-;DL-Cysteine 0;Cysteine (9CI)
CBNumber
CB6363851
Molecular Formula
C3H7NO2S
Formula Weight
121.16
MOL File
3374-22-9.mol
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DL-Cysteine Property

Melting point:
225 °C (dec.) (lit.)
Boiling point:
293.9±35.0 °C(Predicted)
Density 
1.197 (estimate)
refractive index 
1.5130 (estimate)
storage temp. 
Keep in dark place,Inert atmosphere,Room temperature
solubility 
Aqueous Acid (Sparingly), DMSO (Sightly), Water (Slightly)
pka
2.07±0.10(Predicted)
form 
Powder
color 
White to off-white
Water Solubility 
Soluble in water (partly), 1 N HCl (25 mg/ml), ethanol, and acetic acid. Insoluble in acetone.
BRN 
1721406
Stability:
Stable. Incompatible with strong oxidizing agents,
LogP
0.230 (est)
CAS DataBase Reference
3374-22-9(CAS DataBase Reference)
NIST Chemistry Reference
DL-Cysteine(3374-22-9)
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Safety

Hazard Codes 
Xn,Xi,C
Risk Statements 
20/21/22-36/37/38-22-35
Safety Statements 
26-36-37/39-45-36/37/39
RIDADR 
UN 2923 6.1(8) / PGIII
WGK Germany 
3
RTECS 
HA1595000
F 
8-10-23
HazardClass 
8, 6.1
HS Code 
29309013
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Danger
Hazard statements

H314Causes severe skin burns and eye damage

H335May cause respiratory irritation

Precautionary statements

P260Do not breathe dust/fume/gas/mist/vapours/spray.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
861677
Product name
DL-Cysteine
Purity
technical grade
Packaging
10g
Price
$84.7
Updated
2025/07/31
Sigma-Aldrich
Product number
861677
Product name
DL-Cysteine
Purity
technical grade
Packaging
50g
Price
$287
Updated
2025/07/31
TRC
Product number
C995015
Product name
DL-Cysteine
Packaging
25g
Price
$160
Updated
2021/12/16
Frontier Specialty Chemicals
Product number
JK443540
Product name
Cysteine
Purity
98%
Packaging
1g
Price
$13
Updated
2021/12/16
Chem-Impex
Product number
21654
Product name
DL-Cysteine
Purity
≥ 97% (Assay)
Packaging
5G
Price
$25
Updated
2021/12/16
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DL-Cysteine Chemical Properties,Usage,Production

Chemical Properties

white solid

Uses

DL-Cysteine is a NMDA agonist at quisqualate receptors at high concentration.

Uses

DL-Cysteine is a non-essential amino acid that can be synthesized by the human body under normal physiological conditions if a sufficient quantity of methionine is available. Cysteine is commonly used as a precursor in the food and pharmaceutical industries. Cysteine is used as a processing aid for baking, as an additive in cigarettes, as well as in the preparation of meat flavours.

Definition

ChEBI: A sulfur-containing amino acid that is propanoic acid with an amino group at position 2 and a sulfanyl group at position 3.

reaction suitability

reaction type: solution phase peptide synthesis

Biochem/physiol Actions

NMDA agonist that is an agonist at quisqualate receptors at high concentration.

DL-Cysteine Preparation Products And Raw materials

Raw materials

DL-Cysteine hydrochloride

Preparation Products

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DL-Cysteine Suppliers

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View Lastest Price from DL-Cysteine manufacturers

WUHAN FORTUNA CHEMICAL CO., LTD
Product
DL-Cysteine 3374-22-9
Price
US $0.00/Kg/Drum
Min. Order
1KG
Purity
98%min
Supply Ability
500kgs
Release date
2021-09-28
Hebei Chuanghai Biotechnology Co., Ltd
Product
DL-Cysteine 3374-22-9
Price
US $0.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
500000kg
Release date
2024-10-28
Hebei Yanxi Chemical Co., Ltd.
Product
DL-Cysteine 3374-22-9
Price
US $30.00-5.00/kg
Min. Order
1kg
Purity
0.99
Supply Ability
20 tons
Release date
2023-09-22

3374-22-9, DL-CysteineRelated Search:

DL-Cysteine hydrochloride DL-Ornithine hydrochloride DL-Homoserine DL-Histidine DL-Pyroglutamic acid DL-Arginine hydrochloride monohydrate DL-tert-Leucine allo-DL-Threonine 2-amino-3-(1H-indol-3-yl)propanamide 4-HYDROXYMANDELIC ACID MONOHYDRATE DL-Glutamine DL-Leucine DL-Cysteine 6-Aminopenicillanic acid LANTHIONINE S-CARBOXYMETHYL-L-CYSTEINE DL-PENICILLAMINE 3-Mercaptopropionic acid

  • (RS)-2-Amino-3-mercapto-propansαure
  • Cysteine, DL-
  • DL-2-amino-3-mercaptopropanoicacid
  • DL-2-amino-3-mercaptopropionicacid
  • Carbocistein Impurity 2
  • DL-CYSTEINE FREE BASE
  • DL-2-Amino-3-mercaptopropionicacid~H-DL-Cys-OH
  • (+/-)-2-AMINO-3-MERCAPTOPROPIONIC ACID
  • 2-AMINO-3-MERCAPTO-PROPIONIC ACID
  • DL-CYSTEIN
  • DL-CYSTEINE
  • H-DL-CYS-OH
  • dl-cysteina
  • L-HSCH2CH(NH2)COOH
  • DL-Cysteine, S-Benzyl-1-13C
  • Cysteine (9CI)
  • Cysteine, DL- (8CI)
  • NSC 63864
  • rac-cysteine
  • 2-Amino-3-mercaptopropionic acid(Cysteine)
  • Carbocistein Impurity
  • Dl-Cysteine Base
  • H-DL-CYS-OH / CYSTEINE
  • rac-(R*)-2-Amino-3-mercaptopropanoic acid
  • DL-Cysteine,99%
  • (R,S)-2-Amino-3-mercapto-propionic acid
  • DL-CYSTEINE, S-BENZYL
  • DL-Cysteine technical grade
  • DL-Cysteine 0
  • DL-Cysteine, >=98%
  • cysteine/Acetylcysteine
  • DL-Cysteine,(±)-2-Amino-3-mercaptopropionic acid
  • DL-CYSTEINE (1-13C)
  • DL-Cysteine USP/EP/BP
  • Cysteine (9CI, ACI)
  • DL-Cystenine
  • C11925000 DL-Cysteine
  • Prinomastat Impurity 10
  • <sc>DL</sc>-Cysteine
  • 3374-22-9
  • 156-2-51
  • C6H5CH2SCH2CHNH2COOH
  • C3H7NO2S
  • Amino Acid Derivatives
  • CARBOXYLIC ACID
  • Cysteine/Cystine
  • Specialty Synthesis
  • Peptide Synthesis
  • Amino Acids
  • Pharmaceutical Intermediates
  • bc0001