Name: Sulfasalazine
Brand: Selleck Chemicals
SKU: S1576
Rating: 5 (19 reviews)

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Quality Control

Batch: Purity: 99.65%

99.65

Related Targets	PD-1/PD-L1 CXCR STING AhR CD markers Interleukins Anti-infection Antioxidant COX Histamine Receptor
Other Immunology & Inflammation related Inhibitors	Cl-amidine Bestatin (Ubenimex) Bindarit (AF 2838) Tranilast Tempol Sinomenine GI254023X (GI4023) ATP Geniposidic acid CORM-3

Cell Culture, Treatment & Working Concentration

Cell Lines	Assay Type	Incubation Time	Activity Description	PMID
HEK293 Flp-In	Function assay		Inhibition of human liver OATP1B1 expressed in HEK293 Flp-In cells assessed as reduction in E17-betaG uptake by scintillation counting, Ki=0.53μM	22541068
HEK293 Flp-In	Function assay		Inhibition of human liver OATP1B1 expressed in HEK293 Flp-In cells assessed as reduction in E17-betaG uptake by scintillation counting, IC50=0.56μM	22541068
HepG2	Function assay	1 hr	Inhibition of NF-kappaB activation expressed in TNFalpha-stimulated human HepG2 cells co-transfected with PPRE-Luc plasmid pretreated for 1 hr before TNFalpha challenge measured after 24 hrs by luciferase reporter gene assay, IC50=0.9μM	21889336
HepG2	Function assay	1 hr	Inhibition of TNF-alpha-induced NFkappaB activation in human HepG2 cells after 1 hr by luciferase reporter assay, IC50=0.9μM	21870831
HepG2	Function assay	1 hr	Inhibition of TNFalpha-induced NFkappaB transcriptional activity in human HepG2 cells pretreated for 1 hr before TNFalpha challenge by luciferase reporter gene analysis, IC50=0.9μM	22381047
HepG2	Function assay	1 hr	Inhibition of NF-kappaB expressed in human HepG2 cells assessed as inhibition of TNFalpha-induced luciferase activity preincubated for 1 hr followed by TNFalpha challenge measured after 1 hr by reporter gene assay, IC50=0.9μM	23031596
HepG2	Function assay	1 hr	Inhibition of TNF-alpha-induced NF-kappaB transcriptional activation in human HepG2 cells preincubated for 1 hr followed by TNF-alpha challenge measured after 1 hr by luciferase reporter gene assay, IC50=0.9μM	24314396
HEK293 Flp-In	Function assay	5 mins	Inhibition of human liver OATP2B1 expressed in HEK293 Flp-In cells assessed as reduction in [3H]E3S uptake incubated for 5 mins by scintillation counting, Ki=3μM	22541068
HEK293 Flp-In	Function assay	5 mins	Inhibition of human liver OATP2B1 expressed in HEK293 Flp-In cells assessed as reduction in [3H]E3S uptake incubated for 5 mins by scintillation counting, IC50=3μM	22541068
U2OS	Function assay	10 mins	Inhibition of HA-tagged human NTCP expressed in human U2OS cells assessed as reduction in [14C]taurocholate uptake preincubated for 10 mins followed by [14C] taurocholate addition and further incubation for 10 mins by scintillation counting method, IC50=9.6μM	31439379
HEK293 Flp-In	Function assay	5 mins	Inhibition of human liver OATP1B3 expressed in HEK293 Flp-In cells assessed as reduction in [3H]E17-betaG uptake incubated for 5 mins by scintillation counting, Ki=11μM	22541068
HEK293 Flp-In	Function assay	5 mins	Inhibition of human liver OATP1B3 expressed in HEK293 Flp-In cells assessed as reduction in [3H]E17-betaG uptake incubated for 5 mins by scintillation counting, IC50=12μM	22541068
U87	Function assay	15 mins	Inhibition of xc-cystine-glutamate antiporter-mediated cystine uptake in human U87 cells using L-[14C]cystine as substrate after 15 mins by liquid scintillation counting, IC50=30μM	21889337
Click to View More Cell Line Experimental Data

Chemical Information, Storage & Stability

Molecular Weight	398.39	Formula	C₁₈H₁₄N₄O₅S	Storage (From the date of receipt)	3 years-20°Cpowder
CAS No.	599-79-1	Download SDF Download SDF		Storage of Stock Solutions	1 year-80°Cin solvent 1 month-20°Cin solvent
Synonyms	NSC 667219, Sulphasalazine			Smiles	C1=CC=NC(=C1)NS(=O)(=O)C2=CC=C(C=C2)N=NC3=CC(=C(C=C3)O)C(=O)O

Solubility

In vitro
Batch:

DMSO : 80 mg/mL (200.8 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO.)

Water : Insoluble

Ethanol : Insoluble

Molarity Calculator

Mass	Concentration	Volume	Molecular Weight
=	×	×

Dilution Calculator Molecular Weight Calculator

In vivo Batch:
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.
Clear solution	5%DMSO 1 40%PEG300 2 5%Tween80 3 50%ddH2O Validated by Selleck labs. Should you need adjustments to this formulation, contact our sales team for custom testing.	8.300mg/ml (20.83mM)	Taking the 1 mL working solution as an example, add 50 μL of 166 mg/ml clarified DMSO stock solution to 400 μL of PEG300, mix evenly to clarify it; add 50 μL of Tween80 to the above system, mix evenly to clarify; then continue to add 500 μL of ddH2O to adjust the volume to 1 mL. The mixed solution should be used immediately for optimal results.
Clear solution	5% DMSO 1 95% Corn oil Validated by Selleck labs. Should you need adjustments to this formulation, contact our sales team for custom testing.	0.250mg/ml (0.63mM)	Taking the 1 mL working solution as an example, add 50 μL of 5 mg/ml clear DMSO stock solution to 950 μL of corn oil and mix evenly. The mixed solution should be used immediately for optimal results.
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.

In vivo Formulation Calculator (Clear solution)

Step 1: Enter information below (Recommended: An additional animal making an allowance for loss during the experiment)

Dosage: mg/kg Average weight of animals: g Dosing volume per animal:μL Number of animals:

Step 2: Enter the in vivo formulation (This is only the calculator, not formulation. Please contact us first if there is no in vivo formulation at the solubility Section.)

% DMSO + % + % Tween 80 + % ddH₂O

%DMSO+ %

Calculation results:

Working concentration: mg/ml;

Method for preparing DMSO master liquid: mg drug pre-dissolved in μL DMSO ( Master liquid concentration mg/mL, Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug. )

Method for preparing in vivo formulation: Take μL DMSO master liquid, next addμL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH₂O, mix and clarify.

Method for preparing in vivo formulation: Take μL DMSO master liquid, next add μL Corn oil, mix and clarify.

Note: 1. Please make sure the liquid is clear before adding the next solvent.
2. Be sure to add the solvent(s) in order. You must ensure that the solution obtained, in the previous addition, is a clear solution before proceeding to add the next solvent. Physical methods such as vortex, ultrasound or hot water bath can be used to aid dissolving.

Mechanism of Action

Targets/IC₅₀/Ki	NF-κB COX-2 TGF-β
In vitro	Sulfasalazine, like methotrexate, enhances adenosine release at an inflamed site and that adenosine diminishes inflammation via occupancy of A2 receptors on inflammatory cells. This compound treatment for 4 hours inhibits kappaB-dependent transcription with an IC50 value of approximately 0.625 mM. This chemical (2.5 mM) results in cell death of T-lymphocytes in a dose- and time-dependent manner. This compound but not 5ASA or sulfapyridine, strongly inhibits NF-kappaB activation and potently induces apoptosis in T-lymphocytes. It is cleaved into sulfapyridine and 5-aminosalicylic acid (5-ASA; mesalamine) by colonic bacteria, and the latter, too, is reported to suppress NF-kappaB activity. This compound but not its cleaved form 5-ASA causes a dose-dependent inhibition of glioma growth, this effect is entirely attributable to the inhibition of cystine uptake via the system x(c)(-) cystine-glutamate transporter. It inhibits cystine uptake causing a chronic depletion of intracellular GSH and consequently compromised cellular redox defense which stymied tumor growth.
In vivo	Sulfasalazine markedly decreases the number of leukocytes that accumulated in the inflamed (carrageenan, 2 mg/ml) air pouch in the murine air pouch model of inflammation. This compound treatment promotes a marked increase in splenocyte 5-aminoimidazole-4-carboxamidoribonucleotide (AICAR) concentration, which is consistent with the in vitro observation that it inhibits AICAR transformylase.
References	[1] https://pubmed.ncbi.nlm.nih.gov/8596047/ [2] https://pubmed.ncbi.nlm.nih.gov/10602313/ [3] https://pubmed.ncbi.nlm.nih.gov/19457125/ [4] https://pubmed.ncbi.nlm.nih.gov/22381741/

Clinical Trial Information

(data from https://clinicaltrials.gov, updated on 2024-05-22)

NCT Number	Recruitment	Conditions	Sponsor/Collaborators	Start Date	Phases
NCT06134388	Recruiting	Metastatic Colorectal Cancer	Tanta University	September 1 2023	Phase 3
NCT03487926	Active not recruiting	Major Depressive Episode\|Inflammatory Bowel Diseases	Centre for Addiction and Mental Health\|McMaster University	September 14 2022	--
NCT04720183	Completed	Healthy	Galapagos NV	January 11 2021	Phase 1
NCT01577966	Completed	Brain Tumor	University of Alabama at Birmingham	January 2012	Not Applicable

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Sulfasalazine Immunology & Inflammation related inhibitor

Chemical Structure

Molecular Weight: 398.39