WARNING: This product is for research use only, not for human or veterinary use.

MedKoo CAT#: 315227

CAS#: 123663-49-0

Description: Iguratimod is one of a series of 4H-1-benzopyran-4-ones which has potent anti-inflammatory, analgesic and antipyretic activity. The drug is a selective inhibitor of cyclo-oxygenase-2 (COX-2), and inhibits the production of interleukin-1 (IL-1), IL-6, IL-8 and tumour necrosis factor. Iguratimod is currently under clinical trials ( http://www.simcere.com/english/r&d/Pipeline.asp).

Chemical Structure

CAS# 123663-49-0

Theoretical Analysis

MedKoo Cat#: 315227
Name: Iguratimod
CAS#: 123663-49-0
Chemical Formula: C17H14N2O6S
Exact Mass: 374.05726
Molecular Weight: 374.37
Elemental Analysis: C, 54.54; H, 3.77; N, 7.48; O, 25.64; S, 8.57

Size Price Shipping out time Quantity
10mg USD 150 2 Weeks
25mg USD 250 2 Weeks
50mg USD 450 2 Weeks
100mg USD 850 2 Weeks
200mg USD 1450 2 Weeks
500mg USD 2150 2 Weeks
1g USD 3650 2 Weeks
2g USD 4250 2 Weeks
Inquire bulk and customized quantity

Pricing updated 2021-02-28. Prices are subject to change without notice.

Iguratimod, purity > 98%, is in stock. Current shipping out time is about 2 weeks after order is received. CoA, QC data and MSDS documents are available in one week after order is received.

Synonym: N7methanesulfonamido4oxo6(phenoxy)chromen3ylformamide

IUPAC/Chemical Name: N-(7-(methylsulfonamido)-4-oxo-6-phenoxy-4H-chromen-3-yl)formamide


InChi Code: InChI=1S/C17H14N2O6S/c1-26(22,23)19-13-8-15-12(17(21)14(9-24-15)18-10-20)7-16(13)25-11-5-3-2-4-6-11/h2-10,19H,1H3,(H,18,20)

SMILES Code: O=CNC1=COC2=C(C=C(OC3=CC=CC=C3)C(NS(=O)(C)=O)=C2)C1=O

Solid powder

>98% (or refer to the Certificate of Analysis)

Shipping Condition:
Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.

Storage Condition:
Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).

Soluble in DMSO.

Shelf Life:
>2 years if stored properly

Drug Formulation:
This drug may be formulated in DMSO

Stock Solution Storage:
0 - 4 C for short term (days to weeks), or -20 C for long term (months).

HS Tariff Code:

Handling Instructions:

Preparing Stock Solutions

The following data is based on the product molecular weight 374.37 Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.

Select a batch to recalculate based on the batch molecular weight:
Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
1 mM 1.15 mL 5.76 mL 11.51 mL
5 mM 0.23 mL 1.15 mL 2.3 mL
10 mM 0.12 mL 0.58 mL 1.15 mL
50 mM 0.02 mL 0.12 mL 0.23 mL

Molarity Calculator

Calculate the mass, volume, or concentration required for a solution.

*When preparing stock solutions always use the batch-specific molecular weight of the product found on the vial label and SDS / CoA (available online).

Reconstitution Calculator

The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.


Dilution Calculator

Calculate the dilution required to prepare a stock solution.

 1: Tomillero A, Moral MA. Gateways to clinical trials. Methods Find Exp Clin Pharmacol. 2008 Oct;30(8):643-72. PubMed PMID: 19088949.

2: Zhou T, Ding L, Li X, Zhang F, Zhang Q, Gong B, Guo X. Determination of iguratimod in rat plasma by high performance liquid chromatography: method and application. Biomed Chromatogr. 2008 Mar;22(3):260-4. PubMed PMID: 17939167.

3: Tanaka K, Urata N, Mikami M, Ogasawara M, Matsunaga T, Terashima N, Suzuki H. Effect of iguratimod and other anti-rheumatic drugs on adenocarcinoma colon 26-induced cachexia in mice. Inflamm Res. 2007 Jan;56(1):17-23. PubMed PMID: 17334666.

4: Hara M, Abe T, Sugawara S, Mizushima Y, Hoshi K, Irimajiri S, Hashimoto H, Yoshino S, Matsui N, Nobunaga M. Long-term safety study of iguratimod in patients with rheumatoid arthritis. Mod Rheumatol. 2007;17(1):10-6. Epub 2007 Feb 20. PubMed PMID: 17278016.

5: Hara M, Abe T, Sugawara S, Mizushima Y, Hoshi K, Irimajiri S, Hashimoto H, Yoshino S, Matsui N, Nobunaga M, Nakano S. Efficacy and safety of iguratimod compared with placebo and salazosulfapyridine in active rheumatoid arthritis: a controlled, multicenter, double-blind, parallel-group study. Mod Rheumatol. 2007;17(1):1-9. Epub 2007 Feb 20. PubMed PMID: 17278015.

6: Jiang Y, Lü W, Yu SQ, Yao L, Xu GL, Zhang XR. [Inhibitory effect of iguratimod on TNFalpha production and NF-kappaB activity in LPS-stimulated rat alveolar macrophage cell line]. Yao Xue Xue Bao. 2006 May;41(5):401-5. Chinese. PubMed PMID: 16848314.

7: Bayes M, Rabasseda X, Prous JR. Gateways to clinical trials. Methods Find Exp Clin Pharmacol. 2004 Jul-Aug;26(6):473-503. PubMed PMID: 15349141.

8: Bayes M, Rabasseda X, Prous JR. Gateways to clinical trials. Methods Find Exp Clin Pharmacol. 2004 May;26(4):295-318. PubMed PMID: 15319808.