Benzathine benzylpenicillin
Also known as: Penicillin G benzathine, Benzathine Penicillin G, Benzylpenicillin benzathine, DBED-penicillin, Bicillin, Megacillin, N,N'-Dibenzylethylenediamine bis(benzylpenicillin), Penicillin G N,N'-dibenzylethylenediamine salt, Benzapen, Cillenta, Dibencil, Leomypen, Longicil, Moldamin, Neolin, Penadur, Pendepon
Benzathine benzylpenicillin (CAS 1538-09-6) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C48H56N6O8S2 and a molecular weight of 909.124 g/mol. Key properties include a melting point of 123-124ºC, a boiling point of 663.3ºCat 760 mmHg and a flash point of 355ºC. It is classified under GHS with signal word Danger and hazard statements H302 — Harmful if swallowed and H334 — May cause allergy or asthma symptoms if inhaled. It is listed by 1 supplier, from 1.40 to 1,300.00 CNY. Record last updated Aug 21, 2026.
- CAS No.
- 1538-09-6
- Jingsj CID
- J-1987424-5
- Molecular Formula
- C48H56N6O8S2
- Molecular Weight
- 909.124 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
| Supplier | Purity / Pack | Base Price | Unit Price | Origin | |
|---|---|---|---|---|---|
Made to OrderPlatform-operated | 99% 500mg | ¥700.00 | $0.21 /mgBest ¥1.40/mg CNY | CN China MOQ 500mg | |
Made to OrderPlatform-operated | 99% 100mg | ¥300.00 | $0.45 /mg ¥3.00/mg CNY | CN China MOQ 100mg | |
Made to OrderPlatform-operated | 99% 1g | ¥1,300.00 | $194.54 /g ¥1,300.00/g CNY | CN China MOQ 1g |
Physicochemical Properties
| Melting Point | 123-124ºC |
|---|---|
| Boiling Point | 663.3ºCat 760 mmHg |
| Flash Point | 355ºC |
| Exact Mass | 908.360107 |
| PSA | 248.08000 |
| LogP | 5.72700 |
| Vapor Pressure | 1.69E-18mmHg at 25°C |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- H334 — May cause allergy or asthma symptoms if inhaled
Activity & Biological Data
| Additional Information | [1]. Bowen AC, et al. Short-course oral co-trimoxazole versus intramuscular benzathine benzylpenicillin for impetigo in a highly endemic region: an open-label, randomised, controlled, non-inferiority trial. Lancet. 2014 Dec 13;384(9960):2132-40. |
|---|
Frequently Asked Questions
What is the CAS number of Benzathine benzylpenicillin?
The CAS number of Benzathine benzylpenicillin is 1538-09-6.
What are the molecular formula and molecular weight of Benzathine benzylpenicillin?
Benzathine benzylpenicillin has molecular formula C48H56N6O8S2 and molecular weight 909.124 g/mol.
Which suppliers offer Benzathine benzylpenicillin?
1 supplier(s) listed; reference unit price ¥1.40–1300.00 /mg.
Is Benzathine benzylpenicillin hazardous?
Benzathine benzylpenicillin has GHS signal word Danger and hazard statements H302 — Harmful if swallowed; H334 — May cause allergy or asthma symptoms if inhaled.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Benzathine benzylpenicillin (CAS 1538-09-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1987424-5 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.