MedKoo Cat#: 466240 | Name: EM 163
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Description:

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

EM 163 is a TIR-TIR interaction inhibitor, that is a TIR (Toll/ interleukin-1 receptor) domain peptidomimetic of MyD88 protein. EM 163 targets TIR domains in IL-1 receptors blocking the interaction with MyD88. EM 163 inhibits staphylococcal enterotoxin B (SEB)-induced inflammatory cytokine production in vivo. EM 163 protects mice from SEB shock-induced death. In rat hippocampal neurons in vitro, EM 163 blocks the activation of p38 and the inhibitory effects of IL-1β on protein synthesis triggered by chemically-induced long-term potentiation (LTP).

Chemical Structure

EM 163
EM 163
CAS#1206480-93-4

Theoretical Analysis

MedKoo Cat#: 466240

Name: EM 163

CAS#: 1206480-93-4

Chemical Formula: C44H60IN5O4

Exact Mass: 849.3690

Molecular Weight: 849.90

Elemental Analysis: C, 62.18; H, 7.12; I, 14.93; N, 8.24; O, 7.53

Price and Availability

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10mg USD 550.00 2 Weeks
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Related CAS #
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Synonym
EM 163; EM-163; EM163;
IUPAC/Chemical Name
1-methyl-2,5-bis(((S)-3-methyl-1-oxo-1-(pyrrolidin-1-yl)butan-2-yl)(3-phenylpropyl)carbamoyl)pyridin-1-ium iodide
InChi Key
WJCJDZIXEVJIKZ-OFUZFLEOSA-M
InChi Code
InChI=1S/C44H60N5O4.HI/c1-33(2)39(43(52)46-26-12-13-27-46)48(30-16-22-35-18-8-6-9-19-35)41(50)37-24-25-38(45(5)32-37)42(51)49(31-17-23-36-20-10-7-11-21-36)40(34(3)4)44(53)47-28-14-15-29-47;/h6-11,18-21,24-25,32-34,39-40H,12-17,22-23,26-31H2,1-5H3;1H/q+1;/p-1/t39-,40-;/m0./s1
SMILES Code
CC(C)[C@H](N(CCCC1=CC=CC=C1)C(C2=C[N+](C)=C(C=C2)C(N(CCCC3=CC=CC=C3)[C@@H](C(C)C)C(N4CCCC4)=O)=O)=O)C(N5CCCC5)=O.[I-]
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
To be determined
Shelf Life
>2 years if stored properly
Drug Formulation
To be determined
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
Solvent mg/mL mM
Solubility
DMSO 85.0 100.00
Note: There can be variations in solubility for the same chemical from different vendors or different batches from the same vendor. The following factors can affect the solubility of the same chemical: solvent used for crystallization, residual solvent content, polymorphism, salt versus free form, degree of hydration, solvent temperature. Please use the solubility data as a reference only. Warming and sonication will facilitate dissolving. Still have questions? Please contact our Technical Support scientists.

Preparing Stock Solutions

The following data is based on the product molecular weight 849.90 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
1: Zhang Q, Yang B, Li F, Liu M, Lin S, Wang J, Xue Y, Zhu H, Sun W, Hu Z, Zhang Y. Mycophenolic Acid Derivatives with Immunosuppressive Activity from the Coral- Derived Fungus Penicillium bialowiezense. Mar Drugs. 2018 Jul 7;16(7):230. doi: 10.3390/md16070230. PMID: 29986508; PMCID: PMC6070797. 2: Lucas K, Maes M. Role of the Toll Like receptor (TLR) radical cycle in chronic inflammation: possible treatments targeting the TLR4 pathway. Mol Neurobiol. 2013 Aug;48(1):190-204. doi: 10.1007/s12035-013-8425-7. Epub 2013 Feb 26. PMID: 23436141; PMCID: PMC7091222. 3: Kissner TL, Ruthel G, Alam S, Mann E, Ajami D, Rebek M, Larkin E, Fernandez S, Ulrich RG, Ping S, Waugh DS, Rebek J Jr, Saikh KU. Therapeutic inhibition of pro-inflammatory signaling and toxicity to staphylococcal enterotoxin B by a synthetic dimeric BB-loop mimetic of MyD88. PLoS One. 2012;7(7):e40773. doi: 10.1371/journal.pone.0040773. Epub 2012 Jul 27. PMID: 22848400; PMCID: PMC3407147.