Ampicillin
Also known as: D(-)-alpha-aminobenzylpenicillin, aminobenzylpenicillin, Amcill, Binotal, Polycillin, Principen, Penbritin, Wymox, Unasyn, Marisilan, Penstabil, Rosampline, p-50, ay-6108, AB-PC, Amfipen, Qidamp
Ampicillin (CAS 69-53-4) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C16H19N3O4S and a molecular weight of 349.405 g/mol. Key properties include a melting point of 198-200 °C (dec.)(lit.), a boiling point of 644.5±65.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 343.6±34.3 °C. It is classified under GHS with signal word Danger and hazard statements H315 — Causes skin irritation, H317 — May cause an allergic skin reaction and H319 — Causes serious eye irritation. It is listed by 1 supplier, from 150.00 to 238.00 CNY. Record last updated Aug 21, 2026.
- CAS No.
- 69-53-4
- Jingsj CID
- J-11381-4
- Molecular Formula
- C16H19N3O4S
- Molecular Weight
- 349.405 g/mol
- Category
- Organic Compounds
- Last updated
- 8/21/2026
| Supplier | Purity / Pack | Base Price | Unit Price | Origin | |
|---|---|---|---|---|---|
In Stock | 96% 25g | ¥3,750.00 | $22.45 /gBest ¥150.00/g CNY | CN China MOQ 25g | |
In Stock | 96% 5g | ¥1,190.00 | $35.62 /g ¥238.00/g CNY | CN China MOQ 5g |
Physicochemical Properties
| Melting Point | 198-200 °C (dec.)(lit.) |
|---|---|
| Boiling Point | 644.5±65.0 °C at 760 mmHg |
| Density | 1.6±0.1 g/cm3 |
| Flash Point | 343.6±34.3 °C |
| Exact Mass | 349.109619 |
| PSA | 138.03000 |
| LogP | 1.65 |
| Vapor Pressure | 0.0±2.0 mmHg at 25°C |
| Refractive Index | 1.724 |
| Stability | Stable, but may be moisture sensitive. Incopmpatible with strong oxidizing agents. |
| Additional Property | NH4OH 1 M: 50 mg/mL, clear, colorless |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H317 — May cause an allergic skin reaction
- H319 — Causes serious eye irritation
- H334 — May cause allergy or asthma symptoms if inhaled
- H335 — May cause respiratory irritation
Activity & Biological Data
| Additional Information | [1]. Chopra SL, et al. Effect of Ampicillin on E. Coli of Swine Origin. Can J Comp Med Vet Sci. 1963 Sep;27(9):223-7. [2]. Lund B, et al. Ampicillin in portal and peripheral blood and bile after oral administration of ampicillin andpivampicillin. Eur J Clin Pharmacol. 1974;7(2):133-5. [3]. Lee KE, et al. The neuroprotective mechanism of ampicillin in a mouse model of transient forebrain ischemia. Korean J Physiol Pharmacol. 2016 Mar;20(2):185-92. |
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Customs & Trade Information
| HS Code | 2941109200 |
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Frequently Asked Questions
What is the CAS number of Ampicillin?
The CAS number of Ampicillin is 69-53-4.
What are the molecular formula and molecular weight of Ampicillin?
Ampicillin has molecular formula C16H19N3O4S and molecular weight 349.405 g/mol.
Which suppliers offer Ampicillin?
1 supplier(s) listed; reference unit price ¥150.00–238.00 /g.
Is Ampicillin hazardous?
Ampicillin has GHS signal word Danger and hazard statements H315 — Causes skin irritation; H317 — May cause an allergic skin reaction; H319 — Causes serious eye irritation.
What are the upstream and downstream products of Ampicillin?
For Ampicillin, Upstream Products: 6-Aminopenicillanic acid, DL-2-Phenylglycinamide, (R)-4-Phenyloxazolidine-2,5-dione; Downstream Products: Azlocillin, 6-Aminopenicillanic acid, D-(-)-α-Phenylglycine.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Ampicillin (CAS 69-53-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-11381-4 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.