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Impurities and reference standards

N-Desmethylclarithromycin

Also known as 3''-N-Demethylclarithromycin, Erythromycin, N-demethyl-6-O-methyl-, N-Desmethyl Clarithromycin

CAS 101666-68-6Formula C37H67NO13Molar mass 733.94 g/molEC 111-007-4
GHS signal word: Warning. Pictograms: Harmful or irritant 3 suppliers listed
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N-Desmethylclarithromycin chemical structure, C37H67NO13, CAS 101666-68-6
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
101666-68-6
Formula
C37H67NO13
Molar mass
733.94 g/mol
EC number
111-007-4
HS code
294150
Category
Impurities and reference standards

What is N-Desmethylclarithromycin?

Plain description, key identifiers and synonyms

N-Desmethylclarithromycin is a chemical substance with the molecular formula C37H67NO13 and a molar mass of 733.94 g/mol. Its CAS registry number is 101666-68-6. The IUPAC name is (3R,4S,5S,6R,7R,9R,11R,12R,13S,14R)-14-ethyl-12,13-dihydroxy-4-[(2R,4R,5S,6S)-5-hydroxy-4-methoxy-4,6-dimethyloxan-2-yl]oxy-6-[(2S,3R,4S,6R)-3-hydroxy-6-methyl-4-(methylamino)oxan-2-yl]oxy-7-methoxy-3,5,7,9,11,13-hexamethyl-oxacyclotetradecane-2,10-dione.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(3R,4S,5S,6R,7R,9R,11R,12R,13S,14R)-14-ethyl-12,13-dihydroxy-4-[(2R,4R,5S,6S)-5-hydroxy-4-methoxy-4,6-dimethyloxan-2-yl]oxy-6-[(2S,3R,4S,6R)-3-hydroxy-6-methyl-4-(methylamino)oxan-2-yl]oxy-7-methoxy-3,5,7,9,11,13-hexamethyl-oxacyclotetradecane-2,10-dione
CAS number
101666-68-6 CAS number cross-checked
EC number
111-007-4
Molecular formula
C37H67NO13
UNII
OS14R8NX37
InChIKey
CIJTVUQEURKBDL-RWJQBGPGSA-N
InChI
InChI=1S/C37H67NO13/c1-14-25-37(10,44)30(41)20(4)27(39)18(2)16-36(9,46-13)32(51-34-28(40)24(38-11)15-19(3)47-34)21(5)29(22(6)33(43)49-25)50-26-17-35(8,45-12)31(42)23(7)48-26/h18-26,28-32,34,38,40-42,44H,14-17H2,1-13H3/t18-,19-,20+,21+,22-,23+,24+,25-,26+,28-,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(NC)C2O)C(C)(OC)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]([C@H](C(=O)O1)C)O[C@H]2C[C@@]([C@H]([C@@H](O2)C)O)(C)OC)C)O[C@H]3[C@@H]([C@H](C[C@H](O3)C)NC)O)(C)OC)C)C)O)(C)O

Synonyms

  • 3''-N-Demethylclarithromycin
  • Erythromycin, N-demethyl-6-O-methyl-
  • N-Desmethyl Clarithromycin
  • Clarithromycin_N-demethyl
  • Clarithromycin impurity D
  • Clarithromycin EP impurity D
  • 3''-N-Demethyl-6-O-methylerythromycin A, N-Desmethyl Clarithromycin
  • N'-demethyl clarithromycin
  • 3 inverted exclamation marka-N-Demethyl-6-O-methylerythromycin A

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
733.94 g/molcalc.
Exact mass
733.4612 Dacalc.
LogP (octanol/water)
2.1calc.
Topological polar surface area
191.7 Ųcalc.
Hydrogen bond donors
5calc.
Hydrogen bond acceptors
14calc.
Rotatable bonds
8calc.
Heavy atoms
51calc.
Rings
3calc.
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)CC(OC2CCCCO2)CC(OC2CCCCO2)CCC1

O=C1CCCCOC(=O)CC(OC2CCCCO2)CC(OC2CCCCO2)CCC1

3 rings, 30 atoms.

111 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

N-Desmethylclarithromycin suppliers

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All 3 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

3 suppliers in 2 countries

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N-Desmethylclarithromycin 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 N-Desmethylclarithromycin 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 N-Desmethylclarithromycin is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about N-Desmethylclarithromycin, based on the data on this page

What is N-Desmethylclarithromycin?

N-Desmethylclarithromycin is a chemical substance with the molecular formula C37H67NO13 and a molar mass of 733.94 g/mol. Its CAS registry number is 101666-68-6.

What is the CAS number of N-Desmethylclarithromycin?

The CAS registry number of N-Desmethylclarithromycin is 101666-68-6.

What is the molecular formula and weight of N-Desmethylclarithromycin?

The molecular formula of N-Desmethylclarithromycin is C37H67NO13 and its molar mass is 733.94 g/mol.

Is N-Desmethylclarithromycin hazardous?

N-Desmethylclarithromycin 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 N-Desmethylclarithromycin?

N-Desmethylclarithromycin 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 N-Desmethylclarithromycin?

CompoundList lists 3 suppliers of N-Desmethylclarithromycin in India and United States. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy N-Desmethylclarithromycin in India?

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

What is the price of N-Desmethylclarithromycin?

Suppliers quote N-Desmethylclarithromycin 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 N-Desmethylclarithromycin

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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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