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Antibiotics and anti-infectives

Josamycin

Also known as Leucomycin A3, Turimycin A5, Kitasamycin A3

CAS 16846-24-5Formula C42H69NO15Molar mass 828.01 g/molEC 240-871-6
GHS signal word: Warning. Pictograms: Harmful or irritant 11 suppliers listed
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Josamycin chemical structure, C42H69NO15, CAS 16846-24-5
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
16846-24-5
Formula
C42H69NO15
Molar mass
828.01 g/mol
EC number
240-871-6
HS code
294190
Category
Antibiotics and anti-infectives

What is Josamycin?

Plain description, key identifiers and synonyms

Josamycin is a macrolide antibiotic produced by certain strains of Streptomyces narbonensis var. josamyceticus. It has a role as a metabolite and an antibacterial drug. It is an aldehyde, a glycoside, a macrolide antibiotic, a tertiary alcohol, an acetate ester, a tertiary amino compound and a disaccharide derivative.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
[(2S,3S,4R,6S)-6-[(2R,3S,4R,5R,6S)-6-[[(4R,5S,6S,7R,9R,10R,11E,13E,16R)-4-acetyloxy-10-hydroxy-5-methoxy-9,16-dimethyl-2-oxo-7-(2-oxoethyl)-1-oxacyclohexadeca-11,13-dien-6-yl]oxy]-4-(dimethylamino)-5-hydroxy-2-methyloxan-3-yl]oxy-4-hydroxy-2,4-dimethyloxan-3-yl] 3-methylbutanoate
CAS number
16846-24-5 CAS number cross-checkedOther or deprecated CAS: 56689-45-3
EC number
240-871-6
Molecular formula
C42H69NO15
UNII
HV13HFS217
MDL number
MFCD00210320
InChIKey
XJSFLOJWULLJQS-NGVXBBESSA-N
InChI
InChI=1S/C42H69NO15/c1-23(2)19-32(47)56-40-27(6)53-34(22-42(40,8)50)57-37-26(5)54-41(36(49)35(37)43(9)10)58-38-29(17-18-44)20-24(3)30(46)16-14-12-13-15-25(4)52-33(48)21-31(39(38)51-11)55-28(7)45/h12-14,16,18,23-27,29-31,34-41,46,49-50H,15,17,19-22H2,1-11H3/b13-12+,16-14+/t24-,25-,26-,27+,29+,30+,31-,34+,35-,36-,37-,38+,39+,40+,41+,42-/m1/s1
Canonical SMILES
COC1C(OC(C)=O)CC(=O)OC(C)CC=CC=CC(O)C(C)CC(CC=O)C1OC1OC(C)C(OC2CC(C)(O)C(OC(=O)CC(C)C)C(C)O2)C(N(C)C)C1O
Isomeric SMILES
C[C@@H]1C/C=C/C=C/[C@@H]([C@@H](C[C@@H]([C@@H]([C@H]([C@@H](CC(=O)O1)OC(=O)C)OC)O[C@H]2[C@@H]([C@H]([C@@H]([C@H](O2)C)O[C@H]3C[C@@]([C@H]([C@@H](O3)C)OC(=O)CC(C)C)(C)O)N(C)C)O)CC=O)C)O

Synonyms

  • Leucomycin A3
  • Turimycin A5
  • Kitasamycin A3
  • Josamycine
  • Josamicina
  • Antibiotic yl-704 A3
  • Josamycinum
  • iosalide
  • josamina
  • Leucomycin V, 3-acetate 4B-(3-methylbutanoate)
  • Jomybel
  • Yl-704 A3
  • Leucomycin V 3-acetate 4b-(3-methylbutanoate)
  • EN 141
  • josamycin proprionate
  • Josacine
  • Leucomycin V, 3-acetate 4(sup B)-(3-methylbutanoate)
  • Leucomycin V, 3-acetate 4(sup beta)-(3-methylbutanoate)
  • JM
  • Leucomycin A3 (>90%)
  • Josamycin CRS
  • Josamycin (Standard)
  • Leucomycin V 3-acetate 4(beta)-(3-methylbutanoate)
  • Josamycin (JP18/USAN/INN)

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

No measured properties are recorded for this substance yet. Ask suppliers for a technical data sheet.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
828.01 g/molcalc.
Exact mass
827.4667 Dacalc.
LogP (octanol/water)
3.01calc.
Topological polar surface area
206.1 Ųcalc.
Hydrogen bond donors
3calc.
Hydrogen bond acceptors
16calc.
Rotatable bonds
12calc.
Heavy atoms
58calc.
Rings
3calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.81calc.
Formal charge
0calc.
Stereocentres
16calc.
Lipinski rule of five
Fails (2 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Murcko scaffold

The ring system that remains when every side chain is removed

Murcko scaffold of this chemical, O=C1CCCC(OC2CCC(OC3CCCCO3)CO2)CCCCC=CC=CCCO1

O=C1CCCC(OC2CCC(OC3CCCCO3)CO2)CCCCC=CC=CCCO1

3 rings, 31 atoms.

53 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Warning
GHS07: Harmful or irritant
Harmful or irritant

Hazard statements

  • H302Harmful if swallowed.
Precautionary statements (5)
  • P264Wash skin thoroughly after handling.
  • P270Do not eat, drink or smoke when using this product.
  • P301 + P317If swallowed: Get medical help.
  • P330Rinse mouth.
  • P501Dispose of contents and container in accordance with local regulations.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Full safety data and first aid

Josamycin suppliers

Sponsored listings first, then the documented ranking: membership, verification, replies, completeness, freshness and ratings

All 11 suppliers
11 of 11 offers

Suppliers marked Unclaimed profile have not claimed their profile yet. They are not verified by CompoundList, their offers are price on request and details may have changed, so please confirm them with the supplier. Company representatives can claim a profile with a business email on the company's own website domain. Our team verifies each claim and sends the result by email.

Where suppliers are based

11 suppliers in 5 countries

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Josamycin price

Indicative price range per kg from live supplier offers

No published prices right now

Suppliers quote this chemical on request. Send one free request and compare quotes side by side.

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Uses and applications

What the substance is used for, by industry and function

Pharmacological actions

  • Anti-Bacterial Agents

Roles

  • antibacterial agent
  • antibacterial drug
  • antiinfective agent
  • antimicrobial agent
  • antimicrobial drug
  • metabolite
  • pharmaceutical

Regulatory status

Inventories, regulations and trade controls that list this substance

No regulatory list memberships are recorded for this substance yet. Always check the rules of the importing and exporting country before trade.

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Josamycin is traded under.

HS 2941.90Indicative HS code

Antibiotics, other

World exports in 2024
$6.39B
+2.3% vs 2023, imports $6.97B
2019 to 2024
Top exporters
  1. China39.7%
  2. United States11.3%
  3. Switzerland * partner reported10.9%
Top importers
  1. Italy15.0%
  2. India * partner reported12.0%
  3. China8.7%

* Partner reported figures, a lower bound.

Reported customs values in USD, not prices.Full trade data

The HS code shown for Josamycin is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Josamycin, based on the data on this page

What is Josamycin?

Josamycin is a macrolide antibiotic produced by certain strains of Streptomyces narbonensis var. josamyceticus. It has a role as a metabolite and an antibacterial drug. It is an aldehyde, a glycoside, a macrolide antibiotic, a tertiary alcohol, an acetate ester, a tertiary amino compound and a disaccharide derivative.

What is the CAS number of Josamycin?

The CAS registry number of Josamycin is 16846-24-5. Other or deprecated CAS numbers: 56689-45-3.

What is the molecular formula and weight of Josamycin?

The molecular formula of Josamycin is C42H69NO15 and its molar mass is 828.01 g/mol.

What is Josamycin used for?

Known uses and roles of Josamycin include antibacterials and antibiotics in pharmaceuticals, antibacterial agent, antibacterial drug, antiinfective agent, antimicrobial agent and 4 more.

Is Josamycin hazardous?

Josamycin carries the GHS signal word "Warning". Main hazards: harmful if swallowed. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Josamycin?

Josamycin is usually classified under HS code 294190 (Antibiotics, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Josamycin?

CompoundList lists 11 suppliers of Josamycin in China, United States, Australia, India and 1 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Josamycin in India?

1 supplier in India list Josamycin on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of Josamycin?

Suppliers quote Josamycin on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle Josamycin

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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