Azathramycin

Also known as: Azaerythromycin A, Desmethyl Azithromycin, 9-Deoxo-9a-aza-9a-homoerythromycin A, Azithromycin EP Impurity A, Azithromycin Impurity P, 9a-N-Desmethyl azithromycin, DD-Azaerythromycin A, 10-Dihydro-10-deoxo-11-azaerythromycin A

Azathramycin (CAS 76801-85-9) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C37H70N2O12 and a molecular weight of 734.958 g/mol. Key properties include a melting point of 126-136ºC, a boiling point of 815.2±65.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 446.8±34.3 °C. It is classified under GHS with signal word Warning and hazard statements H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 76801-85-9
Jingsj CID: J-1977154-1
Molecular Formula: C₃₇H₇₀N₂O₁₂
Molecular Weight: 734.958 g/mol
Category: Organic Compounds
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	126-136ºC
Boiling Point	815.2±65.0 °C at 760 mmHg
Density	1.2±0.1 g/cm3
Flash Point	446.8±34.3 °C
Exact Mass	734.492859
PSA	188.87000
LogP	3.11
Vapor Pressure	0.0±0.6 mmHg at 25°C
Refractive Index	1.536
Storage Conditions	-20℃

GHS Safety & Compliance

IrritantSignal word: Warning

H319 — Causes serious eye irritation

Activity & Biological Data

Additional Information	[1]. Noedl H, Krudsood S, Leowattana W, In vitro antimalarial activity of azithromycin, artesunate, and quinine in combination and correlation with clinical outcome. Antimicrob Agents Chemother. 2007 Feb;51(2):651-6. [2]. Hiwatashi Y, Maeda M, Fukushima H, Azithromycin suppresses proliferation, interleukin production and mitogen-activated protein kinases in human peripheral-blood mononuclear cells stimulated with bacterial superantigen. J Pharm Pharmacol. 2011 Oct;63(10):1320-6. [3]. Fernandez-Obregon AC. Azithromycin for the treatment of acne. Int J Dermatol. 2000 Jan;39(1):45-50.

Additional Information

[1]. Noedl H, Krudsood S, Leowattana W, In vitro antimalarial activity of azithromycin, artesunate, and quinine in combination and correlation with clinical outcome. Antimicrob Agents Chemother. 2007 Feb;51(2):651-6. [2]. Hiwatashi Y, Maeda M, Fukushima H, Azithromycin suppresses proliferation, interleukin production and mitogen-activated protein kinases in human peripheral-blood mononuclear cells stimulated with bacterial superantigen. J Pharm Pharmacol. 2011 Oct;63(10):1320-6. [3]. Fernandez-Obregon AC. Azithromycin for the treatment of acne. Int J Dermatol. 2000 Jan;39(1):45-50.

Frequently Asked Questions

What is the CAS number of Azathramycin?

The CAS number of Azathramycin is 76801-85-9.

What are the molecular formula and molecular weight of Azathramycin?

Azathramycin has molecular formula C37H70N2O12 and molecular weight 734.958 g/mol.

Is Azathramycin hazardous?

Azathramycin has GHS signal word Warning and hazard statements H319 — Causes serious eye irritation.

What are the upstream and downstream products of Azathramycin?

For Azathramycin, Upstream Products: (9E)-Erythromycin A Oxime, Erythromycin; Downstream Products: Azithromycin.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated: 8/21/2026

How to cite: Jingsj. "Azathramycin (CAS 76801-85-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1977154-1 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.