L-Cysteine S-sulfate

Cat. No.: HY-113084 Purity: 99.65%: Data Sheet
COA

SDS
Handling Instructions
FAQs
Technical Support

L-Cysteine S-sulfate is an S-sulfated derivative of L-cysteine (HY-Y0337). L-Cysteine S-sulfate is the substrate for cystine lyase, it can be used in mass spectrometry and chromatography analyses.

For research use only. We do not sell to patients.

L-Cysteine S-sulfate Chemical Structure

CAS No. : 1637-71-4

Size	Stock	Quantity
Solid + Solvent (Highly Recommended)
10 mM * 1 mL in DMSO ready for reconstitution	In-stock	Estimated Time of Arrival: December 31
Solution
10 mM * 1 mL in DMSO	In-stock	Estimated Time of Arrival: December 31
Solid
5 mg	In-stock	Estimated Time of Arrival: December 31
10 mg	In-stock	Estimated Time of Arrival: December 31
25 mg	In-stock	Estimated Time of Arrival: December 31
50 mg	In-stock	Estimated Time of Arrival: December 31
100 mg	Get quote
200 mg	Get quote

or Bulk Inquiry

* Please select Quantity before adding items.

This product is a controlled substance and not for sale in your territory.

Other Forms of L-Cysteine S-sulfate:

L-Cysteine S-sulfate sodium hydrate In-stock
L-Cysteine S-sulfate sodium Get quote

Featured Recommendations

•Related Screening Libraries:

•Related Small Molecules:

•Related Proteins:

Biological Activity
Purity & Documentation
References
Customer Review

Description

L-Cysteine S-sulfate is an S-sulfated derivative of L-cysteine (HY-Y0337). L-Cysteine S-sulfate is the substrate for cystine lyase, it can be used in mass spectrometry and chromatography analyses^[1]^[2].

IC₅₀ & Target

NMDA Receptor

In Vitro

L-Cysteine S-sulfate is used as an internal standard for quantifying the L-cysteine S-oxidation product in the mixed female human liver cytoplasmic components by high performance liquid chromatography (HPLC)^[1].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

Molecular Weight

201.22

Formula

C₃H₇NO₅S₂

CAS No.

1637-71-4

Appearance

Solid

Color

White to off-white

Structure Classification

Others

Initial Source

Shipping

Room temperature in continental US; may vary elsewhere.

Storage

Sealed storage, away from moisture

Powder	-80°C	2 years
	-20°C	1 year

*In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)

Solvent & Solubility

In Vitro:

H₂O : 250 mg/mL (1242.42 mM; Need ultrasonic)

DMSO : 35 mg/mL (173.94 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

Preparing
Stock Solutions

Concentration Solvent Mass	1 mg	5 mg	10 mg

1 mM	4.9697 mL	24.8484 mL	49.6968 mL
5 mM	0.9939 mL	4.9697 mL	9.9394 mL
10 mM	0.4970 mL	2.4848 mL	4.9697 mL

View the Complete Stock Solution Preparation Table

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.

Molarity Calculator
Dilution Calculator

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

Concentration _(start) × Volume _(start) = Concentration _(final) × Volume _(final)

This equation is commonly abbreviated as: C₁V₁ = C₂V₂

Concentration _(start)

Volume _(start)

Concentration _(final)

Volume _(final)

In Vivo Dissolution Calculator

Please enter the basic information of animal experiments:

Dosage

mg/kg

Animal weight
(per animal)

Dosing volume
(per animal)

μL

Number of animals

Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.

Calculation results:

Working solution concentration: mg/mL

This product has good water solubility, please refer to the measured solubility data in water/PBS/Saline for details.

The concentration of the stock solution you require exceeds the measured solubility. The following solution is for reference only.If necessary, please contact MedChemExpress (MCE).

Purity & Documentation

Purity: 99.65%

Select Batch:

Data Sheet (272 KB) SDS (394 KB)

COA (248 KB) HNMR (245 KB) LCMS (329 KB)

Handling Instructions (2659 KB)

References

[1]. Steventon GB, et, al. Comparison of the sulfur-oxygenation of cysteine and S-carboxymethyl-l-cysteine in human hepatic cytosol and the rôle of cysteine dioxygenase. J Pharm Pharmacol. 2018 Aug;70(8):1069-1077. [Content Brief]

[2]. Macaluso V, et al. l-Cysteine Modified by S-Sulfation: Consequence on Fragmentation Processes Elucidated by Tandem Mass Spectrometry and Chemical Dynamics Simulations. J Phys Chem A. 2019 May 2;123(17):3685-3696. [Content Brief]

Complete Stock Solution Preparation Table

Optional Solvent	Concentration Solvent Mass	1 mg	5 mg	10 mg	25 mg

DMSO / H₂O	1 mM	4.9697 mL	24.8484 mL	49.6968 mL	124.2421 mL
	5 mM	0.9939 mL	4.9697 mL	9.9394 mL	24.8484 mL
	10 mM	0.4970 mL	2.4848 mL	4.9697 mL	12.4242 mL
	15 mM	0.3313 mL	1.6566 mL	3.3131 mL	8.2828 mL
	20 mM	0.2485 mL	1.2424 mL	2.4848 mL	6.2121 mL
	25 mM	0.1988 mL	0.9939 mL	1.9879 mL	4.9697 mL
	30 mM	0.1657 mL	0.8283 mL	1.6566 mL	4.1414 mL
	40 mM	0.1242 mL	0.6212 mL	1.2424 mL	3.1061 mL
	50 mM	0.0994 mL	0.4970 mL	0.9939 mL	2.4848 mL
	60 mM	0.0828 mL	0.4141 mL	0.8283 mL	2.0707 mL
	80 mM	0.0621 mL	0.3106 mL	0.6212 mL	1.5530 mL
	100 mM	0.0497 mL	0.2485 mL	0.4970 mL	1.2424 mL

* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.