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Impurities and reference standards

Erythromycin impurity E

Also known as Erythromycin Impurity 65, Erythromycin, 8,9-didehydro-9-deoxo-6-deoxy-6,9-epoxy-, (9S)-

CAS 857839-61-3Formula C37H65NO12Molar mass 715.92 g/mol
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Erythromycin impurity E chemical structure, C37H65NO12, CAS 857839-61-3
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
857839-61-3
Formula
C37H65NO12
Molar mass
715.92 g/mol
HS code
294150
Category
Impurities and reference standards

What is Erythromycin impurity E?

Plain description, key identifiers and synonyms

Erythromycin impurity E is a chemical substance with the molecular formula C37H65NO12 and a molar mass of 715.92 g/mol. Its CAS registry number is 857839-61-3. The IUPAC name is (2R,3R,4S,5R,8R,9S,10S,11R,12S)-11-[(2S,3R,4S,6R)-4-(dimethylamino)-3-hydroxy-6-methyloxan-2-yl]oxy-5-ethyl-3,4-dihydroxy-9-[(2R,4R,5S,6S)-5-hydroxy-4-methoxy-4,6-dimethyloxan-2-yl]oxy-2,4,8,10,12,14-hexamethyl-6,15-dioxabicyclo[10.2.1]pentadec-1(14)-en-7-one.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(2R,3R,4S,5R,8R,9S,10S,11R,12S)-11-[(2S,3R,4S,6R)-4-(dimethylamino)-3-hydroxy-6-methyloxan-2-yl]oxy-5-ethyl-3,4-dihydroxy-9-[(2R,4R,5S,6S)-5-hydroxy-4-methoxy-4,6-dimethyloxan-2-yl]oxy-2,4,8,10,12,14-hexamethyl-6,15-dioxabicyclo[10.2.1]pentadec-1(14)-en-7-one
CAS number
857839-61-3
Molecular formula
C37H65NO12
UNII
Q225NZM7BP
InChIKey
JFVYXJKGJMUGRG-MGSLXKPGSA-N
InChI
InChI=1S/C37H65NO12/c1-14-25-37(10,43)30(40)20(4)28-18(2)16-36(9,50-28)32(49-34-27(39)24(38(11)12)15-19(3)45-34)21(5)29(22(6)33(42)47-25)48-26-17-35(8,44-13)31(41)23(7)46-26/h19-27,29-32,34,39-41,43H,14-17H2,1-13H3/t19-,20+,21+,22-,23+,24+,25-,26+,27-,29+,30-,31+,32-,34+,35-,36+,37-/m1/s1
Canonical SMILES
CCC1OC(=O)C(C)C(OC2CC(C)(OC)C(O)C(C)O2)C(C)C(OC2OC(C)CC(N(C)C)C2O)C2(C)CC(C)=C(O2)C(C)C(O)C1(C)O
Isomeric SMILES
CC[C@@H]1[C@@]([C@@H]([C@H](C2=C(C[C@](O2)([C@@H]([C@H]([C@@H]([C@H](C(=O)O1)C)O[C@H]3C[C@@]([C@H]([C@@H](O3)C)O)(C)OC)C)O[C@H]4[C@@H]([C@H](C[C@H](O4)C)N(C)C)O)C)C)C)O)(C)O

Synonyms

  • Erythromycin Impurity 65
  • Erythromycin, 8,9-didehydro-9-deoxo-6-deoxy-6,9-epoxy-, (9S)-

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
715.92 g/molcalc.
Exact mass
715.4507 Dacalc.
LogP (octanol/water)
2.89calc.
Topological polar surface area
165.8 Ųcalc.
Hydrogen bond donors
4calc.
Hydrogen bond acceptors
13calc.
Rotatable bonds
7calc.
Heavy atoms
50calc.
Rings
4calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.92calc.
Formal charge
0calc.
Stereocentres
17calc.
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=C1CC(OC2CCCCO2)CC(OC2CCCCO2)C2CC=C(CCCCO1)O2

O=C1CC(OC2CCCCO2)CC(OC2CCCCO2)C2CC=C(CCCCO1)O2

4 rings, 30 atoms.

8 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

No GHS hazard classification is recorded for this substance yet. That does not mean it is harmless.

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

Erythromycin impurity E suppliers

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Erythromycin impurity E price

Indicative price range per kg from live supplier offers

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Uses and applications

What the substance is used for, by industry and function

Applications are not documented for this substance yet. Suppliers often describe uses on their product pages, linked in the suppliers list above.

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 Erythromycin impurity E is traded under.

HS 2941.50Indicative HS code

Erythromycin and its derivatives, salts thereof

World exports in 2024
$379M
−31.1% vs 2023, imports $408M
2019 to 2024
Top exporters
  1. China79.0%
  2. India * partner reported10.6%
  3. Malaysia1.7%
Top importers
  1. India * partner reported27.3%
  2. Japan9.9%
  3. Croatia6.3%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

Quick answers about Erythromycin impurity E, based on the data on this page

What is Erythromycin impurity E?

Erythromycin impurity E is a chemical substance with the molecular formula C37H65NO12 and a molar mass of 715.92 g/mol. Its CAS registry number is 857839-61-3.

What is the CAS number of Erythromycin impurity E?

The CAS registry number of Erythromycin impurity E is 857839-61-3.

What is the molecular formula and weight of Erythromycin impurity E?

The molecular formula of Erythromycin impurity E is C37H65NO12 and its molar mass is 715.92 g/mol.

Is Erythromycin impurity E hazardous?

No GHS hazard classification for Erythromycin impurity E is recorded on CompoundList yet. That does not prove it is safe. Always read the supplier safety data sheet.

What is the HS code of Erythromycin impurity E?

Erythromycin impurity E is usually classified under HS code 294150 (Erythromycin and its derivatives, salts thereof). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Erythromycin impurity E?

Post a free request on CompoundList and suppliers of Erythromycin impurity E will send you quotes. Your contact details stay private until you accept a quote.

What is the price of Erythromycin impurity E?

Suppliers quote Erythromycin impurity E 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 Erythromycin impurity E

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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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