ETH 157

Cat. No.: HY-137172: FAQs
Data Sheet Handling Instructions

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ETH 157 is a Na⁺ selective microelectrode based on a synthetic neutral carrier that is selective enough for K⁺, Ca²⁺, and Mg²⁺ for extracellular measurements of Na+ activity.

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

ETH 157 Chemical Structure

CAS No. : 61595-77-5

Size	Price	Stock	Quantity
5 mg	USD 60	In-stock	Estimated Time of Arrival: December 31
10 mg	USD 90	In-stock	Estimated Time of Arrival: December 31
25 mg	USD 175	In-stock	Estimated Time of Arrival: December 31
50 mg		Get quote
100 mg		Get quote

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References
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Description

ETH 157 is a Na⁺ selective microelectrode based on a synthetic neutral carrier that is selective enough for K⁺, Ca²⁺, and Mg²⁺ for extracellular measurements of Na+ activity^[1].

Molecular Weight

556.65

Formula

C₃₆H₃₂N₂O₄

CAS No.

61595-77-5

Appearance

Solid

SMILES

O=C(N(C1=CC=CC=C1)CC2=CC=CC=C2)COC3=CC=CC=C3OCC(N(C4=CC=CC=C4)CC5=CC=CC=C5)=O

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 : 100 mg/mL (179.65 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	1.7965 mL	8.9823 mL	17.9646 mL
5 mM	0.3593 mL	1.7965 mL	3.5929 mL
10 mM	0.1796 mL	0.8982 mL	1.7965 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

Concentration _(start)

Volume _(start)

Concentration _(final)

Volume _(final)

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.

Calculation results:

Working solution concentration: mg/mL

Purity & Documentation

Handling Instructions (2659 KB)

References

[1]. Ammann D, et al. Neutral carrier sodium ion-selective microelectrode for extracellular studies[J]. Neuroscience letters, 1985, 57(3): 267-271. [Content Brief]

Complete Stock Solution Preparation Table

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

DMSO	1 mM	1.7965 mL	8.9823 mL	17.9646 mL	44.9115 mL
	5 mM	0.3593 mL	1.7965 mL	3.5929 mL	8.9823 mL
	10 mM	0.1796 mL	0.8982 mL	1.7965 mL	4.4912 mL
	15 mM	0.1198 mL	0.5988 mL	1.1976 mL	2.9941 mL
	20 mM	0.0898 mL	0.4491 mL	0.8982 mL	2.2456 mL
	25 mM	0.0719 mL	0.3593 mL	0.7186 mL	1.7965 mL
	30 mM	0.0599 mL	0.2994 mL	0.5988 mL	1.4971 mL
	40 mM	0.0449 mL	0.2246 mL	0.4491 mL	1.1228 mL
	50 mM	0.0359 mL	0.1796 mL	0.3593 mL	0.8982 mL
	60 mM	0.0299 mL	0.1497 mL	0.2994 mL	0.7485 mL
	80 mM	0.0225 mL	0.1123 mL	0.2246 mL	0.5614 mL
	100 mM	0.0180 mL	0.0898 mL	0.1796 mL	0.4491 mL

ETH 157 Related Classifications

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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:

ETH 15761595-77-5ETH157ETH-157OthersNeutral carriersmicroelectrodesselectivityextracellular measurementsInhibitorinhibitorinhibit

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