Captopril EP Impurity D (Synonyms: 3-Bromoisobutyric acid)

Cat. No.: HY-W015332 Purity: ≥95.0%: FAQs
Data Sheet SDS COA Handling Instructions

Molarity Calculator

Captopril EP Impurity D is an impurity of Captopril. Captopril (SQ-14534), antihypertensive agent, is a thiol-containing competitive, orally active angiotensin-converting enzyme (ACE) inhibitor (IC₅₀=0.025 μM).

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

Captopril EP Impurity D Chemical Structure

CAS No. : 56970-78-6

Size	Price	Stock	Quantity
100 mg	USD 50	In-stock	Estimated Time of Arrival: December 31
250 mg	USD 70	In-stock	Estimated Time of Arrival: December 31
500 mg		Get quote
1 g		Get quote

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Purity & Documentation
References
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Description

Molecular Weight

167.00

Formula

C₄H₇BrO₂

CAS No.

56970-78-6

Appearance

Liquid

Color

Colorless to light yellow

SMILES

O=C(O)C(C)CBr

Shipping

Room temperature in continental US; may vary elsewhere.

Storage

Pure form	-20°C	3 years
	4°C	2 years
In solvent	-80°C	6 months
	-20°C	1 month

Solvent & Solubility

In Vitro:

DMSO : 100 mg/mL (598.80 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	5.9880 mL	29.9401 mL	59.8802 mL
5 mM	1.1976 mL	5.9880 mL	11.9760 mL
10 mM	0.5988 mL	2.9940 mL	5.9880 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)

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

This equation is commonly abbreviated as: C₁V₁ = C₂V₂

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 (14.97 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 (14.97 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 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.
Protocol 3

Add each solvent one by one: 10% DMSO 90% Corn Oil
Solubility: ≥ 2.5 mg/mL (14.97 mM); Clear solution

This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown). If the continuous dosing period exceeds half a month, please choose this protocol carefully.
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 mg/mL) to 900 μL Corn oil, and mix evenly.

In Vivo Dissolution Calculator

Please enter the basic information of animal experiments:

Dosage

mg/kg

Animal weight
(per animal)

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

Purity: ≥95.0%

Select Batch:

Data Sheet (270 KB) SDS (640 KB)

COA (242 KB) HNMR (128 KB)

Handling Instructions (2659 KB)

References

[1]. ANCA GABRIELA CÂRJE, et al. HPLC-UV METHOD APPROACH FOR THE ANALYSIS AND IMPURITY PROFILING OF CAPTOPRIL.

[2]. Afrin S, et al. Eritadenine from Edible Mushrooms Inhibits Activity of Angiotensin Converting Enzyme in Vitro. J Agric Food Chem. 2016;64(11):2263-2268. [Content Brief]

[3]. Esmaeili S, et al. Captopril/enalapril inhibit promiscuous esterase activity of carbonic anhydrase at micromolar concentrations: An in vitro study. Chem Biol Interact. 2017;265:24-35. [Content Brief]

Complete Stock Solution Preparation Table

Optional Solvent	Concentration Solvent Mass	1 mg	5 mg	10 mg	25 mg

DMSO	1 mM	5.9880 mL	29.9401 mL	59.8802 mL	149.7006 mL
	5 mM	1.1976 mL	5.9880 mL	11.9760 mL	29.9401 mL
	10 mM	0.5988 mL	2.9940 mL	5.9880 mL	14.9701 mL
	15 mM	0.3992 mL	1.9960 mL	3.9920 mL	9.9800 mL
	20 mM	0.2994 mL	1.4970 mL	2.9940 mL	7.4850 mL
	25 mM	0.2395 mL	1.1976 mL	2.3952 mL	5.9880 mL
	30 mM	0.1996 mL	0.9980 mL	1.9960 mL	4.9900 mL
	40 mM	0.1497 mL	0.7485 mL	1.4970 mL	3.7425 mL
	50 mM	0.1198 mL	0.5988 mL	1.1976 mL	2.9940 mL
	60 mM	0.0998 mL	0.4990 mL	0.9980 mL	2.4950 mL
	80 mM	0.0749 mL	0.3743 mL	0.7485 mL	1.8713 mL
	100 mM	0.0599 mL	0.2994 mL	0.5988 mL	1.4970 mL

Captopril EP Impurity D 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:

Captopril EP Impurity D56970-78-63-Bromoisobutyric acidDrug MetaboliteInhibitorinhibitorinhibit

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