MS402
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MedKoo CAT#: 525592

CAS#: 1672684-68-2

Description: MS402 is a novel BD1-selective BET BrD inhibitor, inhibiting primarily Th17 cell differentiation with a little or almost no effect on Th1 or Th2 and Treg cells. MS402 preferentially renders Brd4 binding to Th17 signature gene loci over those of housekeeping genes and reduces Brd4 recruitment of p-TEFb to phosphorylate and activate RNA polymerase II for transcription elongation. MS402 prevents and ameliorates T-cell transfer-induced colitis in mice by blocking Th17 cell overdevelopment.

Chemical Structure

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MS402
CAS# 1672684-68-2
Product data Instruction

Theoretical Analysis

MedKoo Cat#: 525592
Name: MS402
CAS#: 1672684-68-2
Chemical Formula: C20H19ClN2O3
Exact Mass: 370.11
Molecular Weight: 370.833
Elemental Analysis: C, 64.78; H, 5.16; Cl, 9.56; N, 7.55; O, 12.94

Price and Availability

Size Price Availability Quantity
5mg USD 85 Ready to ship
10mg USD 150 Ready to ship
25mg USD 250 Ready to ship
50mg USD 450 Ready to ship
100mg USD 750 Ready to ship
200mg USD 1250 Ready to ship
500mg USD 1950 Ready to ship
1g USD 2950 Ready to ship
2g USD 5250 2 Weeks
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Synonym: MS402; MS-402; MS 402;

IUPAC/Chemical Name: 3-Chloro-N-(4-methoxyphenyl)-4-((2-methyl-3-oxocyclopent-1-en-1-yl)amino)benzamide

InChi Key: VZTVTSICPINUNG-UHFFFAOYSA-N

InChi Code: InChI=1S/C20H19ClN2O3/c1-12-17(9-10-19(12)24)23-18-8-3-13(11-16(18)21)20(25)22-14-4-6-15(26-2)7-5-14/h3-8,11,23H,9-10H2,1-2H3,(H,22,25)

SMILES Code: O=C(NC1=CC=C(OC)C=C1)C2=CC=C(NC3=C(C)C(CC3)=O)C(Cl)=C2

Appearance: Solid powder

Purity: >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).

Solubility: 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: 2934.99.9001

More Info:

Biological target: MS402 is a BD1-selective BET BrD inhibitor with Kis of 77 nM, 718 nM, 110 nM, 200 nM, 83 nM, and 240 nM for BRD4(BD1), BRD4(BD2), BRD3(BD1), BRD3(BD2), BRD2(BD1) and BRD2(BD2), respectively.
In vitro activity: To study the role of BET proteins in Th cell differentiation, murine primary naïve CD4+ T cells were isolated from mouse spleen and lymph nodes and treated with IL-12, IL-4 plus α-IL-12, TGF-β plus IL-6, or TGF-β plus IL-2, respectively, to promote Th1, Th2, Th17, or Treg linage-specific differentiation over 3.5 d with or without MS402 added daily to cell culture (Fig. 2A). Strikingly, as shown by flow cytometry analysis, MS402, in a dose-dependent manner, inhibited IL-17 release from 18.6 to 8.0% in the Th17 polarizing condition and to a lesser extent IFN-γ production from 49.7 to 38.6% in the Th1 condition; it had little, if any, effect on IL-4 and Foxp3 expression during Th2 and Treg cell differentiation, respectively (Fig. 2B). Reference: Proc Natl Acad Sci U S A. 2017 Mar 14;114(11):2952-2957. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5358349/
In vivo activity: An in vivo experimental colitis study to explore therapeutic potential of MS402 was conducted. Mice treated with MS402 exhibited a reversal of weight loss after 1 wk (Fig. 4G). Consistently, the MS402-treated mice showed an almost minimal degree of inflammation in the colon, as demonstrated by much improved colon length and appearance (Fig. S4A), a lower disease score of 0–1 (Fig. S4B), and markedly reduced inflammatory cell infiltrates in colon sections as compared with those of the disease-group mice (Fig. 4H). Further, the MS402-treated mice also had a lower population of IFN-γ–producing CD4+ T cells and exhibited a much more dramatic reduction of IL-17–producing CD4+ T cells in colon than the group of T-cell-transfer disease mice (Fig. 4I). Finally, the MS402-treated mice had much lower mRNA expression levels of key cytokines and Th17- and Th1-specific transcription factors including il17, il21, il22, il6, rorc, Tbet, and ifng compared with the disease-group mice (Fig. 4J). Collectively, these results show that MS402 is an effective inhibitor of Th17 cell development and ameliorates adaptive T-cell transfer-induced colitis in mice. Reference: Proc Natl Acad Sci U S A. 2017 Mar 14;114(11):2952-2957. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5358349/

Preparing Stock Solutions

The following data is based on the product molecular weight 370.83 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.

Recalculate based on batch purity %
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
Formulation protocol: 1. Cheung K, Lu G, Sharma R, Vincek A, Zhang R, Plotnikov AN, Zhang F, Zhang Q, Ju Y, Hu Y, Zhao L, Han X, Meslamani J, Xu F, Jaganathan A, Shen T, Zhu H, Rusinova E, Zeng L, Zhou J, Yang J, Peng L, Ohlmeyer M, Walsh MJ, Zhang DY, Xiong H, Zhou MM. BET N-terminal bromodomain inhibition selectively blocks Th17 cell differentiation and ameliorates colitis in mice. Proc Natl Acad Sci U S A. 2017 Mar 14;114(11):2952-2957. doi: 10.1073/pnas.1615601114. Epub 2017 Mar 6. PMID: 28265070; PMCID: PMC5358349.
In vitro protocol: 1. Cheung K, Lu G, Sharma R, Vincek A, Zhang R, Plotnikov AN, Zhang F, Zhang Q, Ju Y, Hu Y, Zhao L, Han X, Meslamani J, Xu F, Jaganathan A, Shen T, Zhu H, Rusinova E, Zeng L, Zhou J, Yang J, Peng L, Ohlmeyer M, Walsh MJ, Zhang DY, Xiong H, Zhou MM. BET N-terminal bromodomain inhibition selectively blocks Th17 cell differentiation and ameliorates colitis in mice. Proc Natl Acad Sci U S A. 2017 Mar 14;114(11):2952-2957. doi: 10.1073/pnas.1615601114. Epub 2017 Mar 6. PMID: 28265070; PMCID: PMC5358349.
In vivo protocol: 1. Cheung K, Lu G, Sharma R, Vincek A, Zhang R, Plotnikov AN, Zhang F, Zhang Q, Ju Y, Hu Y, Zhao L, Han X, Meslamani J, Xu F, Jaganathan A, Shen T, Zhu H, Rusinova E, Zeng L, Zhou J, Yang J, Peng L, Ohlmeyer M, Walsh MJ, Zhang DY, Xiong H, Zhou MM. BET N-terminal bromodomain inhibition selectively blocks Th17 cell differentiation and ameliorates colitis in mice. Proc Natl Acad Sci U S A. 2017 Mar 14;114(11):2952-2957. doi: 10.1073/pnas.1615601114. Epub 2017 Mar 6. PMID: 28265070; PMCID: PMC5358349.

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1: Cheung K, Lu G, Sharma R, Vincek A, Zhang R, Plotnikov AN, Zhang F, Zhang Q, Ju Y, Hu Y, Zhao L, Han X, Meslamani J, Xu F, Jaganathan A, Shen T, Zhu H, Rusinova E, Zeng L, Zhou J, Yang J, Peng L, Ohlmeyer M, Walsh MJ, Zhang DY, Xiong H, Zhou MM. BET N-terminal bromodomain inhibition selectively blocks Th17 cell differentiation and ameliorates colitis in mice. Proc Natl Acad Sci U S A. 2017 Mar 14;114(11):2952-2957. doi: 10.1073/pnas.1615601114. Epub 2017 Mar 6. PubMed PMID: 28265070; PubMed Central PMCID: PMC5358349.