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Impurities and reference standards

Erythromycin E

Also known as 1'',16-Epoxyerythromycin, Erythromycin, 1'',16-epoxy-, Erythromycin EP Impurity C

CAS 41451-91-6Formula C37H65NO14Molar mass 747.92 g/mol
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Erythromycin E chemical structure, C37H65NO14, CAS 41451-91-6
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
41451-91-6
Formula
C37H65NO14
Molar mass
747.92 g/mol
HS code
294150
Category
Impurities and reference standards

What is Erythromycin E?

Plain description, key identifiers and synonyms

Erythromycin E is an erythromycin and an ortho ester. It is functionally related to an erythromycin A.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(1R,4R,4'R,5S,5'S,6R,6'S,7R,9R,11R,12R,13S,14S,16S)-12-[(2S,3R,4S,6R)-4-(dimethylamino)-3-hydroxy-6-methyloxan-2-yl]oxy-4-ethyl-5,5',6,11-tetrahydroxy-4'-methoxy-4',5,6',7,9,11,13-heptamethylspiro[3,15,17-trioxabicyclo[12.4.0]octadecane-16,2'-oxane]-2,8-dione
CAS number
41451-91-6
Molecular formula
C37H65NO14
UNII
39V2DI8XOX
InChIKey
PRUSTPADOGZAML-LMXGZOGMSA-N
InChI
InChI=1S/C37H65NO14/c1-13-25-36(9,45)29(41)20(4)26(39)18(2)15-34(7,44)31(50-33-27(40)24(38(10)11)14-19(3)48-33)21(5)28-23(32(43)49-25)16-47-37(52-28)17-35(8,46-12)30(42)22(6)51-37/h18-25,27-31,33,40-42,44-45H,13-17H2,1-12H3/t18-,19-,20+,21+,22+,23-,24+,25-,27-,28+,29-,30+,31-,33+,34-,35-,36-,37-/m1/s1
Canonical SMILES
CCC1OC(=O)C2COC3(CC(C)(OC)C(O)C(C)O3)OC2C(C)C(OC2OC(C)CC(N(C)C)C2O)C(C)(O)CC(C)C(=O)C(C)C(O)C1(C)O
Isomeric SMILES
CC[C@@H]1[C@@]([C@@H]([C@H](C(=O)[C@@H](C[C@@]([C@@H]([C@H]([C@H]2[C@@H](CO[C@]3(O2)C[C@@]([C@H]([C@@H](O3)C)O)(C)OC)C(=O)O1)C)O[C@H]4[C@@H]([C@H](C[C@H](O4)C)N(C)C)O)(C)O)C)C)O)(C)O

Synonyms

  • 1'',16-Epoxyerythromycin
  • Erythromycin, 1'',16-epoxy-
  • Erythromycin EP Impurity C
  • Erythromycin EP Impurity C, Erythromycin E
  • Erythromycin impurity c
  • Erythromycin estolate impurity c
  • Erythromycin stearate impurity c
  • Erythromycin ethylsuccinate impurity c
  • Erythromycin lactobionate impurity c

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
747.92 g/molcalc.
Exact mass
747.4405 Dacalc.
LogP (octanol/water)
1.12calc.
Topological polar surface area
203.1 Ųcalc.
Hydrogen bond donors
5calc.
Hydrogen bond acceptors
15calc.
Rotatable bonds
5calc.
Heavy atoms
52calc.
Rings
4calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.95calc.
Formal charge
0calc.
Stereocentres
18calc.
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=C1CCCCOC(=O)C2COC3(CCCCO3)OC2CC(OC2CCCCO2)CCC1

O=C1CCCCOC(=O)C2COC3(CCCCO3)OC2CC(OC2CCCCO2)CCC1

4 rings, 32 atoms.

No other chemical in our database has 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 E suppliers

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

All 2 suppliers

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

2 suppliers in 1 country

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Erythromycin E 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

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 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 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 E, based on the data on this page

What is Erythromycin E?

Erythromycin E is an erythromycin and an ortho ester. It is functionally related to an erythromycin A.

What is the CAS number of Erythromycin E?

The CAS registry number of Erythromycin E is 41451-91-6.

What is the molecular formula and weight of Erythromycin E?

The molecular formula of Erythromycin E is C37H65NO14 and its molar mass is 747.92 g/mol.

Is Erythromycin E hazardous?

No GHS hazard classification for Erythromycin 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 E?

Erythromycin 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 E?

CompoundList lists 2 suppliers of Erythromycin E in India. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Erythromycin E in India?

2 suppliers in India list Erythromycin E on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of Erythromycin E?

Suppliers quote Erythromycin 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 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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