ChemicalBook > CAS DataBase List > L-CYSTINE DIHYDROCHLORIDE

L-CYSTINE DIHYDROCHLORIDE

Product Name
L-CYSTINE DIHYDROCHLORIDE
CAS No.
30925-07-6
Chemical Name
L-CYSTINE DIHYDROCHLORIDE
Synonyms
L-(-)-CYSTINE DIHYDROCHLORIDE;L-CYSTINE DIHYDROCHLORIDE SALT;Cystine2HCl,L-;(H-CYS-OH)2 HCL;Einecs 250-391-9;(H-CYS-OH)2 2HCL;(H-L-Cys-OH)2·2HCl;-Cystine dihydrochL;L-Cystine HCl Monohydrate;L-CYSTINE DIHYDROCHLORIDE
CBNumber
CB9147199
Molecular Formula
C6H13ClN2O4S2
Formula Weight
276.75
MOL File
30925-07-6.mol
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L-CYSTINE DIHYDROCHLORIDE Property

Melting point:
228-232℃
alpha 
[α]D20 -165～-175° (c=1, dil. HCl)
Density 
1.518[at 20℃]
vapor pressure 
0Pa at 20℃
storage temp. 
Keep in dark place,Inert atmosphere,Room temperature
solubility 
0.5 M HCl: 50 mg/mL
form 
Powder
color 
White to Pale Yellow
Odor
odorless
biological source
synthetic
optical activity
[α]20/D -174 to -164 °, c =2 in 1 M HCl
Water Solubility 
Soluble in hydrochloric acid. (0.5 M HCl: 50 mg/mL) Soluble in water.
InChI
InChI=1/C6H12N2O4S2.ClH/c7-3(5(9)10)1-13-14-2-4(8)6(11)12;/h3-4H,1-2,7-8H2,(H,9,10)(H,11,12);1H/t3-,4-;/s3
InChIKey
IOCJWNPYGRVHLN-QYDODFSFNA-N
SMILES
[C@@H](N)(C(=O)O)CSSC[C@H](N)C(=O)O.Cl |&1:0,9,r|
LogP
-5.08 at 25℃
CAS DataBase Reference
30925-07-6(CAS DataBase Reference)
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Safety

Hazard Codes 
Xi
Risk Statements 
36/37/38
Safety Statements 
26-36
WGK Germany 
3
TSCA 
Yes
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

Precautionary statements

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

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

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.

P363Wash contaminated clothing before reuse.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
RES1513C-A7
Product name
L-Cystine dihydrochloride, non-animal derived
Packaging
1kg
Price
$2170
Updated
2025/07/31
Sigma-Aldrich
Product number
RES1513C-A7
Product name
L-Cystine dihydrochloride, non-animal derived
Purity
PharmaGrade, Manufactured under appropriate controls for use as a raw material in pharma or biopharmaceutical production., suitable for cell culture
Packaging
1pkg
Price
$8718
Updated
2025/07/31
Sigma-Aldrich
Product number
C2526
Product name
L-Cystine dihydrochloride
Purity
≥98% (TLC)
Packaging
100g
Price
$245
Updated
2025/07/31
Sigma-Aldrich
Product number
C2526
Product name
L-Cystine dihydrochloride
Purity
≥98% (TLC)
Packaging
1kg
Price
$1399.95
Updated
2025/07/31
Sigma-Aldrich
Product number
RES1513C-A7
Product name
L-Cystine dihydrochloride, non-animal derived
Packaging
100g
Price
$238
Updated
2024/03/01
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L-CYSTINE DIHYDROCHLORIDE Chemical Properties,Usage,Production

Chemical Properties

Solid

Uses

L-Cystine is a sulfur containing non-essential amino acid. It is used as a cell culture media component and raw material in the commercial biomanufacture of therapeutic recombinant proteins and monoclonal antibodies. L-Cystine dihydrochloride is a modified version of L-Cystine with improved solubility.

Flammability and Explosibility

Not classified

Biochem/physiol Actions

L-Cystine is a natural proteinogenic amino acid sulfide dimer of L-cysteine. L-cystine is used as a cell culture supplement. L-cystine is also used to characterize and identify specific amino acid transport systems in cells such as system system Xc(─) .

in vivo

L-Cystine dihydrochloride (280 mg/kg, p.o., 11 days) administrated with L-theanine (HY-15121) enhances antigen-specific IgG production partly through augmentation of glutathione (GSH) levels and T helper 2 (Th2)-mediated responses in mice[2]. L-Cystine dihydrochloride (200 mg/kg, p.o., 11 days) administrated with L-theanine (HY-15121) (80 mg/kg, p.o., 11 days) significantly decreases the serum IL-10/IFN-γ ratio 6 hours after DNP-KLH antigenic stimulation, but increases the serum IL-10/IFN-γ ratio 24 hours after DNP-KLH antigenic stimulation in mice[2].

Animal Model:Nine-week-old female BALB/c mice[2]
Dosage:140, 280 and 560 mg/kg
Administration: p.o. administration for 11 days
Result:Increased IgG and IgM antibody production administrated with L-theanine (HY-15121) after DNP-dextran and DNP-KLH antigenic stimulation in mice.

L-CYSTINE DIHYDROCHLORIDE Preparation Products And Raw materials

Raw materials

Preparation Products

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L-CYSTINE DIHYDROCHLORIDE Suppliers

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View Lastest Price from L-CYSTINE DIHYDROCHLORIDE manufacturers

HEBEI SHENGSUAN CHEMICAL INDUSTRY CO.,LTD
Product
L-Alaninamide hydrochloride 30925-07-6
Price
US $999.00-800.00/kg
Min. Order
1kg
Purity
99%
Supply Ability
5000
Release date
2024-08-22
Hebei Chuanghai Biotechnology Co,.LTD
Product
L-CYSTINE DIHYDROCHLORIDE 30925-07-6
Price
US $9.00/KG
Min. Order
1KG
Purity
99.9
Supply Ability
1 ton
Release date
2024-08-20
Chengdu Baishixing Science and Technology Industry Co.,Ltd
Product
L-Cystine dihydrochloride 30925-07-6
Price
US $0.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
5T/MOMTH
Release date
2023-07-21

30925-07-6, L-CYSTINE DIHYDROCHLORIDERelated Search:

O-TOLYLHYDRAZINE HYDROCHLORIDE 3,3'-Dimethoxybenzidine dihydrochloride 2,5-Dichlorophenylhydrazine hydrochloride L-CYSTINE DIHYDROCHLORIDE 3,3'-Dithiodipropionic acid L-Cystine hydrochloride 3-[(2-AMINOETHYL)DITHIO]PROPIONIC ACID DL-Cystine L-Cystine L-Cysteine monohydrochloride DL-CYSTEINE HYDROCHLORIDE MONOHYDRATE DL-Cysteine hydrochloride Dimethyl L-cystinate dihydrochloride Cystamine dihydrochloride diethyl L-cystinate dihydrochloride L-Cystine bis(t-butyl ester) dihydrochloride DL-CYSTINE HYDROCHLORIDE DL-CYSTINE-DIHYDROCHLORIDE,DL-CYSTINE-DIHYDROCHLORIDE

  • (H-CYS-OH)2 2HCL
  • (H-CYS-OH)2 HCL
  • L-(-)-CYSTINE DIHYDROCHLORIDE
  • L-CYSTINE DIHYDROCHLORIDE
  • L-Cystine HCl Monohydrate
  • L-Cystine dihydrochloride, non-animal source, cell culture tested
  • Cystine2HCl,L-
  • L-CYSTINE DIHYDROCHLORIDE SALT
  • L-CYSTINE DIHYDROCHLORIDE SYNTHETICALLY DERIVED
  • Cystine Dihydrochloride, L-
  • Einecs 250-391-9
  • 2-aMino-3-[(2R)-2-aMino-3-hydroxy-3-oxopropyl]disulfanylpropanoic acid dihydrochloride
  • L-CYSTINE DIHYDROCHLORIDE SUPPLIERS & MANUFACTURERS
  • L-CYSTINE DIHYDROCHLORIDE, NON-ANIMA
  • (H-L-Cys-OH)2·2HCl
  • L-Cystine dihydrochlorideNon-animal source, ≥ 99% (Assay: anhydrous basis)
  • L-Cystine dihydrochloride, non-animal derived
  • L-(-)-Cystine Dihydrochloride &gt
  • CultureSure L-Cystine Dihydrochloride, Animal-derived-free
  • -Cystine dihydrochL
  • L-CYSTINE DIHYDROCHLORIDE USP/EP/BP
  • TIANFU-CHEM - L-CYSTINE DIHYDROCHLORIDE
  • (2R,2'R)-3,3'-Disulfanediylbis(2-aminopropanoic acid) dihydrochloride
  • L-Cystine, dihydrochloride (9CI)
  • L-Cysteine dihydrochloride
  • <sc>L</sc>-Cystine dihydrochloride
  • 30925-07-6
  • 135058-63-7
  • C6H12N2O4S22ClH
  • amino
  • Biochemicals Found in Plants
  • Nutrition Research
  • Amino AcidsNutrition Research
  • Amino Acids and Vitamins
  • Reagents and Supplements
  • Amino acids