2. Neuronal Signaling Metabolic Enzyme/Protease
  3. OGT Acyltransferase
  4. (Rac)-OSMI-1

(Rac)-OSMI-1 is the racemate of OSMI-1. OSMI-1 is a cell-permeable O-GlcNAc transferase (OGT) inhibitor with an IC50 value of 2.7 μM. OSMI-1 inhibits protein O-linked N-acetylglucosamine (O-GlcNAcylation) in several mammalian cell lines without qualitatively altering cell surface N- or O-linked glycans.

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

(Rac)-OSMI-1 Chemical Structure

(Rac)-OSMI-1 Chemical Structure

CAS No. : 2748153-92-4

Size Price Stock Quantity
Solid + Solvent (Highly Recommended)
10 mM * 1 mL in DMSO
ready for reconstitution
 USD 99 In-stock
Solution
10 mM * 1 mL in DMSO USD 99 In-stock
Solid
5 mg USD 90 In-stock
10 mg USD 150 In-stock
25 mg USD 250 In-stock
50 mg USD 450 In-stock
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Customer Review

Based on 1 publication(s) in Google Scholar

Other Forms of (Rac)-OSMI-1:

(Rac)-OSMI-1 Related Antibodies

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ACAT1 ACAT2 MGAT2 ACAT

  • Biological Activity

  • Purity & Documentation

  • References

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Description

(Rac)-OSMI-1 is the racemate of OSMI-1. OSMI-1 is a cell-permeable O-GlcNAc transferase (OGT) inhibitor with an IC50 value of 2.7 μM. OSMI-1 inhibits protein O-linked N-acetylglucosamine (O-GlcNAcylation) in several mammalian cell lines without qualitatively altering cell surface N- or O-linked glycans[1][2].

Molecular Weight

563.64

Formula

C28H25N3O6S2
CAS No.
Appearance

Solid

Color

White to light yellow

SMILES

O=C(N(CC1=CC=CS1)CC2=CC=CO2)C(NS(C3=CC(C=C4)=C(C=C3)NC4=O)(=O)=O)C5=CC=CC=C5OC
Shipping

Room temperature in continental US; may vary elsewhere.
Storage
Powder -20°C 3 years
4°C 2 years
In solvent -80°C 6 months
-20°C 1 month
Solvent & Solubility
In Vitro: 

DMSO : 50 mg/mL (88.71 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 1.7742 mL 8.8709 mL 17.7418 mL
5 mM 0.3548 mL 1.7742 mL 3.5484 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. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

  • Molarity Calculator

  • Dilution Calculator

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

Mass
=
Concentration
×
Volume
×
Molecular Weight *

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

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start)

C1

×
Volume (start)

V1

=
Concentration (final)

C2

×
Volume (final)

V2

In Vivo:

Select the appropriate dissolution method based on your experimental animal and administration route.

For the following dissolution methods, please ensure to first prepare a clear stock solution using an In Vitro approach and then sequentially add co-solvents:
To ensure reliable experimental results, the clarified stock solution can be appropriately stored based on storage conditions. As for the working solution for in vivo experiments, it is recommended to prepare freshly and use it on the same day.
The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.

  • Protocol 1

    Add each solvent one by one:  10% DMSO    40% PEG300    5% Tween-80    45% Saline

    Solubility: ≥ 2.5 mg/mL (4.44 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 mg/mL) to 400 μL PEG300, and mix evenly; then add 50 μL Tween-80 and mix evenly; then add 450 μL Saline to adjust the volume to 1 mL.

    Preparation of Saline: Dissolve 0.9 g sodium chloride in ddH₂O and dilute to 100 mL to obtain a clear Saline solution.
  • Protocol 2

    Add each solvent one by one:  10% DMSO    90% (20% SBE-β-CD in Saline)

    Solubility: ≥ 2.5 mg/mL (4.44 mM); Suspended solution

    This protocol yields a suspended solution of ≥ 2.5 mg/mL (saturation unknown). Suspended solution can be used for oral and intraperitoneal injection.

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 mg/mL) to 900 μL 20% SBE-β-CD in Saline, and mix evenly.

    Preparation of 20% SBE-β-CD in Saline (4°C, storage for one week): 2 g SBE-β-CD powder is dissolved in 10 mL Saline, completely dissolve until clear.
In Vivo Dissolution Calculator
Please enter the basic information of animal experiments:

Dosage

mg/kg

Animal weight
(per animal)

g

Dosing volume
(per animal)

μL

Number of animals

Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
Please enter your animal formula composition:
%
DMSO +
% 
+
%
Tween-80 +
%
Saline
Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.
The co-solvents required include: DMSO, . All of co-solvents are available by MedChemExpress (MCE). , Tween 80. All of co-solvents are available by MedChemExpress (MCE).
Calculation results:
Working solution concentration: mg/mL
Method for preparing stock solution: mg drug dissolved in μL  DMSO (Stock solution concentration: mg/mL).
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).
Method for preparing in vivo working solution for animal experiments: Take μL DMSO stock solution, add μL . μL , mix evenly, next add μL Tween 80, mix evenly, then add μL Saline.
 If the continuous dosing period exceeds half a month, please choose this protocol carefully.
Please ensure that the stock solution in the first step is dissolved to a clear state, and add co-solvents in sequence. You can use ultrasonic heating (ultrasonic cleaner, recommended frequency 20-40 kHz), vortexing, etc. to assist dissolution.
Purity & Documentation
References

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. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

Optional Solvent Concentration Solvent Mass 1 mg 5 mg 10 mg 25 mg
DMSO 1 mM 1.7742 mL 8.8709 mL 17.7418 mL 44.3546 mL
5 mM 0.3548 mL 1.7742 mL 3.5484 mL 8.8709 mL
10 mM 0.1774 mL 0.8871 mL 1.7742 mL 4.4355 mL
15 mM 0.1183 mL 0.5914 mL 1.1828 mL 2.9570 mL
20 mM 0.0887 mL 0.4435 mL 0.8871 mL 2.2177 mL
25 mM 0.0710 mL 0.3548 mL 0.7097 mL 1.7742 mL
30 mM 0.0591 mL 0.2957 mL 0.5914 mL 1.4785 mL
40 mM 0.0444 mL 0.2218 mL 0.4435 mL 1.1089 mL
50 mM 0.0355 mL 0.1774 mL 0.3548 mL 0.8871 mL
60 mM 0.0296 mL 0.1478 mL 0.2957 mL 0.7392 mL
80 mM 0.0222 mL 0.1109 mL 0.2218 mL 0.5544 mL
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(Rac)-OSMI-1 Related Classifications

Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

Keywords:

(Rac)-OSMI-12748153-92-4OGTAcyltransferaseO-linked N-acetylglucosaminyltransferaseO-GlcNAc transferaseDiacylglycerol acyltransferaseDiglyceride acyltransferaseacyl-CoA:cholesterol acyltransferasemono- acylglycerol acyltransferaseracemateOSMI-1Inhibitorinhibitorinhibit

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