Physostigmine hemisulfate (Synonyms: Eserine hemisulfate)

Cat. No.: HY-N2320: FAQs
Data Sheet SDS COA Handling Instructions

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Physostigmine hemisulfate (Eserine hemisulfate) is a reversible acetylcholinesterase (AChE) inhibitor. Physostigmine hemisulfate can crosses the blood-brain barrier and stimulates central cholinergic neurotransmission. Physostigmine hemisulfate can reverse memory deficits in transgenic mice with Alzheimer's disease. Physostigmine hemisulfate is also an antidote for anticholinergic poisoning.

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Physostigmine hemisulfate Chemical Structure

CAS No. : 64-47-1

Size	Price	Stock	Quantity
5 mg	USD 150	In-stock	Estimated Time of Arrival: December 31
10 mg	USD 260	In-stock	Estimated Time of Arrival: December 31
50 mg		Get quote
100 mg		Get quote

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This product is a controlled substance and not for sale in your territory.

Other Forms of Physostigmine hemisulfate:

Physostigmine salicylate In-stock
Physostigmine In-stock

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Biological Activity
Purity & Documentation
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Description

In Vivo

Physostigmine hemisulfate (Eserine hemisulfate; 0.03-0.3 mg/kg; s.c.; daily for 6 weeks) improves deficits in contextual and cued memory in Tg(+) mice^[2].
Physostigmine hemisulfate (IV; 0.1, 0.2 mg/kg) delays time to emergence from isoflurane anesthesia at doses ≥0.2 mg/kg in male Sprague-Dawley rats^[4].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

Animal Model:	Heterozygous transgenic mice (Tg(+) mice)^[2]
Dosage:	0.03, 0.1, and 0.3 mg/kg
Administration:	SC; daily for 6 weeks
Result:	Tended to normalize the contextual memory deficit in Tg(+) animals so that they became more similar to Tg(-) animals.

Clinical Trial

Molecular Weight

324.38

Formula

C₁₅H₂₁N₃O₂.1/2H₂O₄S

CAS No.

64-47-1

Appearance

Solid

Color

White to off-white

SMILES

CN1[C@](N(C)CC2)([H])[C@]2(C)C3=C1C=CC(OC(NC)=O)=C3.O=S(O)(O)=O.[1/2]

Shipping

Room temperature in continental US; may vary elsewhere.

Storage

-20°C, sealed storage, away from moisture

*In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)

Solvent & Solubility

In Vitro:

H₂O : 50 mg/mL (154.14 mM; Need ultrasonic)

Preparing
Stock Solutions

Concentration Solvent Mass	1 mg	5 mg	10 mg

1 mM	3.0828 mL	15.4140 mL	30.8280 mL
5 mM	0.6166 mL	3.0828 mL	6.1656 mL
10 mM	0.3083 mL	1.5414 mL	3.0828 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 (sealed storage, away from moisture). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.

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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 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

This product has good water solubility, please refer to the measured solubility data in water/PBS/Saline for details.

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).

Purity & Documentation

Purity: ≥98.0%

Select Batch:

Data Sheet (280 KB) SDS (252 KB)

COA (258 KB)

Handling Instructions (2659 KB)

Complete Stock Solution Preparation Table

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

H₂O	1 mM	3.0828 mL	15.4140 mL	30.8280 mL	77.0701 mL
	5 mM	0.6166 mL	3.0828 mL	6.1656 mL	15.4140 mL
	10 mM	0.3083 mL	1.5414 mL	3.0828 mL	7.7070 mL
	15 mM	0.2055 mL	1.0276 mL	2.0552 mL	5.1380 mL
	20 mM	0.1541 mL	0.7707 mL	1.5414 mL	3.8535 mL
	25 mM	0.1233 mL	0.6166 mL	1.2331 mL	3.0828 mL
	30 mM	0.1028 mL	0.5138 mL	1.0276 mL	2.5690 mL
	40 mM	0.0771 mL	0.3854 mL	0.7707 mL	1.9268 mL
	50 mM	0.0617 mL	0.3083 mL	0.6166 mL	1.5414 mL
	60 mM	0.0514 mL	0.2569 mL	0.5138 mL	1.2845 mL
	80 mM	0.0385 mL	0.1927 mL	0.3854 mL	0.9634 mL
	100 mM	0.0308 mL	0.1541 mL	0.3083 mL	0.7707 mL

* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.

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:

Physostigmine hemisulfate64-47-1Eserine hemisulfateInhibitorinhibitorinhibit

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