Physostigmine hemisulfate
毒扁豆碱半硫酸盐
Also known as: Eserine hemisulfate, Eserine sulfate, Physostigmine sulfate, Physostigmine hemisulfate salt, Eserine hemisulfate salt, PHYSOSTIGMINE SULFATE (2:1), Pyrrolo[2,3-b]indol-5-ol, 1,2,3,3a,8,8a-hexahydro-1,3a,8-trimethyl-, methylcarbamate (ester), (3aS,8aR)-, sulfate (2:1)
Physostigmine hemisulfate (CAS 64-47-1) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C15H21N3O2.1/2H2O4S and a molecular weight of 648.77100 g/mol. It is also known as Eserine hemisulfate, Eserine sulfate and Physostigmine sulfate. Key properties include a boiling point of 557.5ºC at 760 mmHg and a flash point of 291ºC. It is classified under GHS with signal word Danger and hazard statements H300 and H330 — Fatal if inhaled. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 64-47-1
- Jingsj CID
- J-30942-8
- Molecular Formula
- C15H21N3O212H2O4S
- Chinese Name
- 毒扁豆碱半硫酸盐
- Molecular Weight
- 648.77100 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 557.5ºC at 760 mmHg |
|---|---|
| Flash Point | 291ºC |
| Exact Mass | 648.29400 |
| PSA | 172.60000 |
| LogP | 4.76340 |
| Storage Conditions | 2-8°C |
GHS Safety & Compliance
- H300
- H330 — Fatal if inhaled
Activity & Biological Data
| Additional Information | [1]. Jonathan D Kenny, et al. Physostigmine and Methylphenidate Induce Distinct Arousal States During Isoflurane General Anesthesia in Rats. Anesth Analg. 2016 Nov;123(5):1210-1219. |
|---|
Frequently Asked Questions
What is the CAS number of Physostigmine hemisulfate?
The CAS number of Physostigmine hemisulfate is 64-47-1.
What are the molecular formula and molecular weight of Physostigmine hemisulfate?
Physostigmine hemisulfate has molecular formula C15H21N3O2.1/2H2O4S and molecular weight 648.77100 g/mol.
Is Physostigmine hemisulfate hazardous?
Physostigmine hemisulfate has GHS signal word Danger and hazard statements H300; H330 — Fatal if inhaled.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Physostigmine hemisulfate (CAS 64-47-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-30942-8 (accessed 2026-10-28).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.