Erythromycin stearate

Modify Date: 2025-08-25 19:01:18

Erythromycin stearate structure	Common Name	Erythromycin stearate
	CAS Number	643-22-1	Molecular Weight	1004.377
	Density	1.112g/cm3	Boiling Point	N/A
	Molecular Formula	C₅₅H₁₀₃NO₁₅	Melting Point	77-79ºC
	MSDS	Chinese USA	Flash Point	523.101ºC
	Symbol	GHS08	Signal Word	Danger

Use of Erythromycin stearate

Erythromycin stearate is a macrolide antibiotic produced by actinomycete Streptomyces erythreus with a broad spectrum of antimicrobial activity. Erythromycin stearate binds to bacterial 50S ribosomal subunits and inhibits RNA-dependent protein synthesis by blockage of transpeptidation and/or translocation reactions, without affecting synthesis of nucleic acid[1][2]. Erythromycin stearate also exhibits antitumor and neuroprotective effect in different fields of research[3][4].

Name	Erythromycin Stearate
Synonym	More Synonyms

Description	Erythromycin stearate is a macrolide antibiotic produced by actinomycete Streptomyces erythreus with a broad spectrum of antimicrobial activity. Erythromycin stearate binds to bacterial 50S ribosomal subunits and inhibits RNA-dependent protein synthesis by blockage of transpeptidation and/or translocation reactions, without affecting synthesis of nucleic acid[1][2]. Erythromycin stearate also exhibits antitumor and neuroprotective effect in different fields of research[3][4].
Related Catalog	Research Areas >> Cancer Research Areas >> Infection Signaling Pathways >> Cell Cycle/DNA Damage >> DNA/RNA Synthesis Signaling Pathways >> Anti-infection >> Bacterial
Target	Bacterial; RNA-dependent protein synthesis[1]
In Vitro	Erythromycin stearate inhibits growth of P. falciparum with IC50 and IC90 values of 58.2 μM and 104.0 μM, respectively[1]. Erythromycin stearate (10 μM, 100 μM; 24 h, 72 h) shows antioxidant and anti-inflammatory effects and suppresses the accumulation of 4-HNE (p<0.01) and 8-OHdG (p<0.01), reduces Iba-1 (p<0.01) and TNF-α (p<0.01) expression significantly[4]. Cell Viability Assay[4] Cell Line: Embryos primary cortical neuron (from the cerebral cortices of 17-day-old Sprague-Dawley rat) Concentration: 10, 100 μM Incubation Time: 24, 72 hours Result: Improved the viability of cultured neuronal cells in vitro after 3 hours oxygen-glucose deprivation (OGD).
In Vivo	Erythromycin stearate (gastric intubation; 0.1-50 mg/kg; 30-120 days) decreases tumor growth and prolong the survival time of mice from dose of 5 mg/kg in mice[3]. Erythromycin stearate (gastric intubation; 5 mg/kg) protects mice alive even at 120 days after inoculation, but shortens mean survival time in tumor-bearing mice by 4-5 days with dose of 50 mg/kg[3]. Erythromycin stearate (i.h.; single injection; 50 mg/kg) has a protective effect on the rat model with cerebral ischemia reperfusion-injury[4]. Animal Model: Female ddY mice (6-week-old) with EAC cells or CDF mice (6-week-old) with P388 cells[3] Dosage: 0.1 mg/kg; 0.5 mg/kg; 10 mg/kg; 30 mg/kg; 50 mg/kg Administration: Gastric intubation; 30-120 days Result: Decreased tumor growth and prolonged the mean survival time of mice from the dose of 5 mg/kg, however, the 50 mg/kg dosage shortened the MST in tumorbearing mice. Animal Model: Male Sprague-Dawley rats (8-week-old, 250-300 g)[4] Dosage: 50 mg/kg Administration: Subcutaneous single injection Result: Reduced infarct volume and edema volume, improved neurological deficit.
References	[1]. Gribble MJ, et al. Erythromycin. Med Clin North Am. 1982 Jan;66(1):79-89. [2]. Nakornchai S, et al. Activity of azithromycin or erythromycin in combination with antimalarial drugs against multidrug-resistant Plasmodium falciparum in vitro. Acta Trop. 2006 Dec;100(3):185-91. Epub 2006 Nov 28. [3]. K Hamada, et al. Antitumor Effect of Erythromycin in Mice. Chemotherapy [4]. Katayama Y, et al. Neuroprotective effects of erythromycin on cerebral ischemia reperfusion-injury and cell viability after oxygen-glucose deprivation in cultured neuronal cells. Brain Res. 2014 Nov 7. 1588:159-67.

Density	1.112g/cm3
Melting Point	77-79ºC
Molecular Formula	C₅₅H₁₀₃NO₁₅
Molecular Weight	1004.377
Flash Point	523.101ºC
Exact Mass	1003.717102
PSA	231.21000
LogP	8.11810
Index of Refraction	1.518
InChIKey	YAVZHCFFUATPRK-YZPBMOCRSA-N
SMILES	CCC1OC(=O)C(C)C(OC2CC(C)(OC)C(O)C(C)O2)C(C)C(OC2OC(C)CC(N(C)C)C2O)C(C)(O)CC(C)C(=O)C(C)C(O)C1(C)O.CCCCCCCCCCCCCCCCCC(=O)O
Storage condition	2-8°C
Stability	Stable. Combustible. Incompatible with acids, strong oxidizing agents.
Water Solubility	ethanol: soluble50mg/mL, clear to very slightly hazy, colorless

CHEMICAL IDENTIFICATION

RTECS NUMBER :: KF5785000

CHEMICAL NAME :: Erythromycin, stearate (salt)

CAS REGISTRY NUMBER :: 643-22-1

LAST UPDATED :: 199612

DATA ITEMS CITED :: 9

MOLECULAR FORMULA :: C37-H67-N-O13.C18-H36-O2

MOLECULAR WEIGHT :: 1018.59

WISWESSER LINE NOTATION :: T-14-VO GVTJ C2 DQ D EQ F H JQ J L N KO- BT6OTJ CQ DN1&1 F& MO- FT6OTJ B CQ DO1 D &622

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Human - woman

DOSE/DURATION :: 60 mg/kg

TOXIC EFFECTS :: Gastrointestinal - changes in structure or function of endocrine pancreas Gastrointestinal - nausea or vomiting Biochemical - Enzyme inhibition, induction, or change in blood or tissue levels - other Enzymes

REFERENCE :: JTCTDW Journal of Toxicology, Clinical Toxicology. (Marcel Dekker, 270 Madison Ave., New York, NY 10016) V.19- 1982- Volume(issue)/page/year: 34,93,1996

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 3112 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: NIIRDN Drugs in Japan (Ethical Drugs). (Yakugyo Jiho Co., Ltd., Tokyo, Japan) Volume(issue)/page/year: -,211,1990

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Subcutaneous

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: >2500 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: NIIRDN Drugs in Japan (Ethical Drugs). (Yakugyo Jiho Co., Ltd., Tokyo, Japan) Volume(issue)/page/year: -,211,1990

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - guinea pig

DOSE/DURATION :: 413 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: NIIRDN Drugs in Japan (Ethical Drugs). (Yakugyo Jiho Co., Ltd., Tokyo, Japan) Volume(issue)/page/year: -,211,1990 ** OTHER MULTIPLE DOSE TOXICITY DATA **

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 13037 mg/kg/14D-C

TOXIC EFFECTS :: Behavioral - food intake (animal) Gastrointestinal - other changes Nutritional and Gross Metabolic - weight loss or decreased weight gain

REFERENCE :: NTPTR* National Toxicology Program Technical Report Series. (Research Triangle Park, NC 27709) No.206- Volume(issue)/page/year: NTP-TR-338,1988

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 71 gm/kg/14D-C

TOXIC EFFECTS :: Behavioral - food intake (animal) Gastrointestinal - other changes Related to Chronic Data - death

REFERENCE :: NTPTR* National Toxicology Program Technical Report Series. (Research Triangle Park, NC 27709) No.206- Volume(issue)/page/year: NTP-TR-338,1988 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - M0726 No. of Facilities: 592 (estimated) No. of Industries: 2 No. of Occupations: 2 No. of Employees: 1977 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - M0726 No. of Facilities: 78 (estimated) No. of Industries: 1 No. of Occupations: 1 No. of Employees: 1108 (estimated) No. of Female Employees: 615 (estimated)

Symbol	GHS08
Signal Word	Danger
Hazard Statements	H317-H334
Precautionary Statements	P261-P280-P284-P304 + P340-P342 + P311
Personal Protective Equipment	dust mask type N95 (US);Eyeshields;Faceshields;Gloves
Hazard Codes	Xn:Harmful;
Risk Phrases	R42/43
Safety Phrases	S36
RIDADR	NONH for all modes of transport
WGK Germany	2
RTECS	KF5785000
HS Code	2942000000

HS Code	2942000000

Antibiotics for ureaplasma in the vagina in pregnancy.

Cochrane Database Syst. Rev. (9) , CD003767, (2011)

Preterm birth is a significant perinatal problem contributing to perinatal morbidity and mortality. Heavy vaginal ureaplasma colonisation is suspected of playing a role in preterm birth and preterm ru...

Cholestasis and liver cell damage due to hypersensitivity to erythromycin stearate--recurrence following therapy with erythromycin succinate.

Wien. Klin. Wochenschr. 111(2) , 76-7, (1999)

Erythromycin is a frequently used antibiotic in patients with atypical respiratory infection and/or an allergy to penicillin. We report the case of a young woman who developed severe cholestasis and j...

Efficacy and tolerance of roxithromycin in comparison with erythromycin stearate in patients with lower respiratory tract infections.

Scand. J. Infect. Dis. 24(2) , 219-25, (1992)

The efficacy and tolerance of roxithromycin 150 mg b.i.d. were compared with those of erythromycin stearate 500 mg b.i.d. in patients with lower respiratory tract infections. Out of 86 patients recrui...

Name: Discovery of Small Molecules to Inhibit Human Cytomegalovirus Nuclear Egress
Source: ICCB-Longwood/NSRB Screening Facility, Harvard Medical School
Target: HCMV UL50
External Id: HMS1262

Name: uHTS identification of small molecule modulators of Rev-erb Alpha.
Source: Burnham Center for Chemical Genomics
Target: N/A
External Id: SBCCG-A1016-RevErbaLBD-Primary-Assay

Name: Inhibition of sodium fluorescein uptake in OATP1B3-transfected CHO cells at an equimo...
Source: ChEMBL
Target: Solute carrier organic anion transporter family member 1B3
External Id: CHEMBL3039491

Name: Cell-based high throughput primary assay to identify activators of GPR151
Source: The Scripps Research Institute Molecular Screening Center
Target: RecName: Full=G-protein coupled receptor 151; AltName: Full=G-protein coupled receptor PGR7; AltName: Full=GPCR-2037; AltName: Full=Galanin receptor 4; AltName: Full=Galanin-receptor-like protein; Short=GalRL
External Id: GPR151_PHUNTER_AG_LUMI_1536_1X%ACT

Name: Carcinogenesis bioassays from the Carcinogenic Potency Database (CPDB)
Source: 25294
Target: N/A
External Id: cpdb

Name: Human Phosphogluconate dehydrogenase (6PGD) Inhibitor Screening
Source: 11827
Target: Phosphogluconate dehydrogenase
External Id: 6PGD_Inhibitor_Screening_2015_09

Name: Identifying Sarm1 Tir Hydrolase inhibitors through NAD-Glo assay
Source: 24386
Target: N/A
External Id: Sarm1 Tir NADase inhibitors screen

Name: Inhibition of sodium fluorescein uptake in OATP1B1-transfected CHO cells at an equimo...
Source: ChEMBL
Target: Solute carrier organic anion transporter family member 1B1
External Id: CHEMBL3039488

Name: NCI human tumor cell line growth inhibition assay. Data for the MCF7 Non-Small Cell L...
Source: DTP/NCI
Target: N/A
External Id: MCF7_OneDose

Name: NCI human tumor cell line growth inhibition assay. Data for the IGROV1 Non-Small Cell...
Source: DTP/NCI
Target: N/A
External Id: IGROV1_OneDose

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EINECS 211-396-1

MFCD00084690

Heptadecanoic acid - (3R,4S,5S,6R,7R,9R,11R,12R,13S,14R)-6-{[(2S,3R,4S,6R)-4-(dimethylamino)-3-hydroxy-6-methyltetrahydro-2H-pyran-2-yl]oxy}-14-ethyl-7,12,13-trihydroxy-4-{[(2R,4R,5S,6S)-5-hydroxy-4-methoxy-4,6-dimethyltetrahydro-2H-pyran-2-yl]oxy}-3,5,7,9,11,13-hexamethyloxacyclotetradecane-2,10-dione (1:1)

Erythromycin stearate

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Henan Tianfu Chemical Co., Ltd.
China
Product Name: TIANFU-CHEM -Erythromycin stearate
Price: $Inquiry/1kg $Inquiry/25kg $Inquiry/1000kg $Inquiry/10ton
Purity: 99.0%
Delivery: Inquiry
Contact: Anson
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