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.

Product information

CAS Number: 64-47-1

Molecular Weight: 648.77

Formula: C30H44N6O8S

Chemical Name: bis((E)-1-{[(3aS,8aR)-1,3a,8-trimethyl-1H,2H,3H,3aH,8H,8aH-pyrrolo[2,3-b]indol-5-yl]oxy}-N-methylmethanimidic acid); sulfuric acid

Smiles: C[C@@]12CCN(C)[C@@H]1N(C)C1C=CC(=CC2=1)O/C(/O)=N/C.C[C@@]12CCN(C)[C@@H]1N(C)C1C=CC(=CC2=1)O/C(/O)=N/C.OS(O)(=O)=O

InChiKey: YYBNDIVPHIWTPK-KYJQVDHRSA-N

InChi: InChI=1S/2C15H21N3O2.H2O4S/c2*1-15-7-8-17(3)13(15)18(4)12-6-5-10(9-11(12)15)20-14(19)16-2;1-5(2,3)4/h2*5-6,9,13H,7-8H2,1-4H3,(H,16,19);(H2,1,2,3,4)/t2*13-,15+;/m11./s1

Technical Data

Appearance: Solid Power

Purity: ≥98% (or refer to the Certificate of Analysis)

Shipping Condition: Shipped under ambient temperature as non-hazardous chemical or refer to Certificate of Analysis

Storage Condition: Dry, dark and -20 ^oC for 1 year or refer to the Certificate of Analysis.

Shelf Life: ≥12 months if stored properly.

Stock Solution Storage: 0 - 4 ^oC for 1 month or refer to the Certificate of Analysis.

Drug Formulation: To be determined

HS Tariff Code: 382200

How to use

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. 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.

Products are for research use only. Not for human use.