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Analgesics and anti-inflammatories

Droxicam

Also known as Droxicamum, 5-methyl-3-(2-pyridyl)-2H,5H-1,3-oxazino(5,6-c)(1,2)benzothiazine-2,4(3H)dione-6,6-dioxide, 8-methyl-5-(pyridin-2-yl)-3-oxa-9??-thia-5,8-diazatricyclo(8.4.0.02,?)tetradeca-1(14),2(7),10,12-tetraene-4,6,9,9-tetrone

CAS 90101-16-9Formula C16H11N3O5SMolar mass 357.35 g/mol
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Droxicam chemical structure, C16H11N3O5S, CAS 90101-16-9
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
90101-16-9
Formula
C16H11N3O5S
Molar mass
357.35 g/mol
HS code
293590
Category
Analgesics and anti-inflammatories

What is Droxicam?

Plain description, key identifiers and synonyms

Droxicam is an organic heterotricyclic compound that is 2H,5H-[1,3]oxazino[5,6-c][1,2]benzothiazine-2,4(3H)-dione 6,6-dioxide substituted at positions 3 and 5 by pyridin-2-yl and methyl groups respectively. A prodrug of piroxicam, it is used for the relief of pain and inflammation in musculoskeletal disorders such as rheumatoid arthritis and osteoarthritis. It has a role as a non-steroidal anti-inflammatory drug, a non-narcotic analgesic, a prodrug, a platelet aggregation inhibitor, a cyclooxygenase 1 inhibitor and a hepatotoxic agent. It is a member of pyridines and an organic heterotricyclic compound. It is functionally related to a piroxicam.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
5-methyl-6,6-dioxo-3-pyridin-2-yl-[1,3]oxazino[5,6-c][1,2]benzothiazine-2,4-dione
CAS number
90101-16-9 CAS number cross-checked
Molecular formula
C16H11N3O5S
UNII
F24ADO1E2D
MDL number
MFCD00866032
InChIKey
OEHFRZLKGRKFAS-UHFFFAOYSA-N
InChI
InChI=1S/C16H11N3O5S/c1-18-13-14(10-6-2-3-7-11(10)25(18,22)23)24-16(21)19(15(13)20)12-8-4-5-9-17-12/h2-9H,1H3
SMILES (canonical and isomeric)
CN1C2=C(C3=CC=CC=C3S1(=O)=O)OC(=O)N(C2=O)C4=CC=CC=N4

Synonyms

  • Droxicamum
  • 5-methyl-3-(2-pyridyl)-2H,5H-1,3-oxazino(5,6-c)(1,2)benzothiazine-2,4(3H)dione-6,6-dioxide
  • 8-methyl-5-(pyridin-2-yl)-3-oxa-9??-thia-5,8-diazatricyclo(8.4.0.02,?)tetradeca-1(14),2(7),10,12-tetraene-4,6,9,9-tetrone
  • 5-Methyl-3-(pyridin-2-yl)benzo[5,6][1,2]thiazino[3,4-e][1,3]oxazine-2,4(3H,5H)-dione 6,6-dioxide
  • 5-methyl-6,6-dioxo-3-pyridin-2-yl-[1,3]oxazino[5,6-c][1,2]benzothiazine-2,4-dione
  • Ombolan
  • Droxicam (INN)
  • 5-Methyl-3-(pyridin-2-yl)benzo[5,6][1,2]thiazino-[3,4-e][1,3]oxazine-2,4(3H,5H)-dione 6,6-dioxide
  • 5-Methyl-3-(pyridin-2-yl)-3-hydro-2H,5H-benzo[5,6][1,2]thiazino[3,4-e][1,3]oxazine-2,4-dione 6,6-dioxide
  • precam
  • Drogelon
  • Ferpan
  • 5-Methyl-3-(2-pyridinyl)-2H,5H-1,3-oxazino(5,6-c)(1,2)benzothiazine-2,4(3H)-dione 6,6-dioxide
  • 5-methyl-6,6-dioxo-3-(2-pyridyl)-[1,3]oxazino[5,6-c][1,2]benzothiazine-2,4-dione
  • 2H,5H-1,3-Oxazino(5,6-c)(1,2)benzothiazine-2,4(3H)-dione, 5-methyl-3-(2-pyridinyl)-, 6,6-dioxide
  • 5-Methyl-3-(2-pyridyl)-2H,5H-1,3-oxazino(5,6-c)(1,2)benzothiazine-2,4(3H)-dione 6,6-dioxide
  • 5-Methyl-3-(2-pyridyl)-2H,5H-1,3-oxazino(5,6-))(1,2)benzothiazine-2,4(3H)-dione 6,6-dioxide
  • 5-methyl-3-(2-pyridyl)-2H,5H-1,3-oxazino[5,6-c][1,2]benzothiazine-2,4-(3H)dione-6,6-dioxide
  • 5-methyl-3-(pyridin-2-yl)-2H,5H-[1,3]oxazino[5,6-c][1,2]benzothiazine-2,4(3H)-dione 6,6-dioxide
  • 5-Methyl-3-(pyridin-2-yl)-2H-6lambda~6~-[1,3]oxazino[5,6-c][1,2]benzothiazine-2,4,6,6(3H,5H)-tetrone
  • 8-methyl-5-(pyridin-2-yl)-3-oxa-9$l^{6}-thia-5,8-diazatricyclo[8.4.0.0^{2,7}]tetradeca-1(10),2(7),11,13-tetraene-4,6,9,9-tetrone
  • 8-methyl-5-(pyridin-2-yl)-3-oxa-9lambda6-thia-5,8-diazatricyclo[8.4.0.0^{2,7}]tetradeca-1(14),2(7),10,12-tetraene-4,6,9,9-tetrone

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
357.35 g/molcalc.
Exact mass
357.0419 Dacalc.
LogP (octanol/water)
0.99calc.
Topological polar surface area
102.5 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
6calc.
Rotatable bonds
1calc.
Heavy atoms
25calc.
Rings
4calc.
Aromatic rings
3calc.
Fraction sp3 carbons
0.06calc.
Formal charge
0calc.
Stereocentres
0calc.
Lipinski rule of five
Passes (0 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=c1oc2c(c(=O)n1-c1ccccn1)NS(=O)(=O)c1ccccc1-2

O=c1oc2c(c(=O)n1-c1ccccn1)NS(=O)(=O)c1ccccc1-2

4 rings, 24 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.

Droxicam suppliers

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All 2 suppliers

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Where suppliers are based

2 suppliers in 2 countries

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Droxicam 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

Pharmacological actions

  • Anti-Inflammatory Agents, Non-Steroidal

Roles

  • aetiopathogenetic role
  • analgesic
  • anti-inflammatory agent
  • anti-inflammatory drug
  • antirheumatic drug
  • cyclooxygenase 1 inhibitor
  • enzyme inhibitor
  • hematologic agent
  • hepatotoxic agent
  • non-narcotic analgesic
  • non-steroidal anti-inflammatory drug
  • pharmaceutical
  • platelet aggregation inhibitor
  • pro-agent
  • prodrug

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 Droxicam is traded under.

HS 2935.90Indicative HS code

Sulphonamides, other

World exports in 2024
$5.64B
−11.0% vs 2023, imports $8.56B
2019 to 2024
Top exporters
  1. Ireland43.1%
  2. China12.0%
  3. India * partner reported9.5%
Top importers
  1. United States23.6%
  2. Slovenia19.1%
  3. Spain11.7%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

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

What is Droxicam?

Droxicam is an organic heterotricyclic compound that is 2H,5H-[1,3]oxazino[5,6-c][1,2]benzothiazine-2,4(3H)-dione 6,6-dioxide substituted at positions 3 and 5 by pyridin-2-yl and methyl groups respectively.

What is the CAS number of Droxicam?

The CAS registry number of Droxicam is 90101-16-9.

What is the molecular formula and weight of Droxicam?

The molecular formula of Droxicam is C16H11N3O5S and its molar mass is 357.35 g/mol.

What is Droxicam used for?

Known uses and roles of Droxicam include analgesics and antipyretics in pharmaceuticals, anti-inflammatories in pharmaceuticals, aetiopathogenetic role, analgesic, anti-inflammatory agent and 13 more.

Is Droxicam hazardous?

No GHS hazard classification for Droxicam 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 Droxicam?

Droxicam is usually classified under HS code 293590 (Sulphonamides, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Droxicam?

CompoundList lists 2 suppliers of Droxicam in China and United States. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Droxicam?

Suppliers quote Droxicam 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 Droxicam

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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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