Skip to content
Molekula

Molekula

Omeprazole

CAS 73590-58-6 C17H19N3O3S MW 345.42 In stock

Omeprazole is a proton pump inhibitor used to treat conditions such as gastroesophageal reflux disease (GERD), peptic ulcers, and Zollinger-Ellison syndrome by reducing stomach acid production. It is available as a white to off-white powder with a CAS number of 73590-58-6, molecular formula C17H19N3O3S, and molecular weight of 345.42 g/mol. Store at 2 to 8 °C. Signal word: Warning. Molekula supplies Omeprazole from research to bulk quantities with full documentation and ISO 9001:2015 traceability.

CoA by batch

Overview

Omeprazole is a proton pump inhibitor used to treat conditions such as gastroesophageal reflux disease (GERD), peptic ulcers, and Zollinger-Ellison syndrome by reducing stomach acid production. It is available as a white to off-white powder with a CAS number of 73590-58-6, molecular formula C17H19N3O3S, and molecular weight of 345.42 g/mol. Store at 2 to 8 °C. Signal word: Warning. Molekula supplies Omeprazole from research to bulk quantities with full documentation and ISO 9001:2015 traceability.

Specifications

Property Value
Appearance A white or almost white powder
Heavy metals ≤0.002%
Loss on Drying ≤0.5%
Specification USP 39
Residue on Ignition ≤0.1%
Total Impurities ≤1.0%
Absorbance Not greater than 0.10 at 440nm (≤350ppm)
Assay ( HPLC ) 98.0% - 102.0%
Any other individual impurity ≤0.10%
Residual solvent - acetone ≤1500ppm
Residual Solvent - Methanol ≤1000ppm
Residual solvent - methylene chloride ≤ 100ppm
Residual solvent - Toluene ≤ 300ppm
Residual solvent - Benzene ≤1ppm
5-Methoxy-1H-benzimidazol-2-thiol ≤0.15%
Omeprazole N-oxide ≤0.15%
Omeprazole sulfone N-oxide ≤0.15%
Desmethoxy omeprazole ≤0.15%
Omeprazole sulfone ≤0.15%
Omeprazole 4-chloroanalog ≤0.15%
Ufiprazole ≤0.15%

Storage & handling

Property Value
Storage Temperature 2 to 8 °C
Transport Class 9
Packing Group III
Shelf Life 24 months
Acidity Acid

Identification

Property Value
CAS Number 73590-58-6
Molecular Formula C17H19N3O3S
Molecular Weight 345.42
SMILES O=S(C1=NC=2C=CC(OC)=CC2N1)CC3=NC=C(C(OC)=C3C)C
EC / UN Number 3077
REACH Code Y110
HTS Code 29333941
Tariff Code 2933399990

Safety & GHS

Warning
  • GHS pictogram — Explosive Explosive GHS01
  • GHS pictogram — Toxic Toxic GHS06

Hazard statements

  • H302 Harmful if swallowed
  • H315 Causes skin irritation
  • H317 May cause an allergic skin reaction
  • H319 Causes serious eye irritation
  • H335 May cause respiratory irritation
  • H411 Toxic to aquatic life with long lasting effects

Precautionary statements

  • P261 Avoid breathing dust/fume/gas/mist/vapours/spray
  • P273 Avoid release to the environment
  • P280 Wear protective gloves/protective clothing/eye protection/face protection
  • P302+352 IF ON SKIN: Wash with soap and water
  • P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
  • P501 Dispose of contents/container to an approved waste disposal plant

For research and industrial use only

Not for use in food, drugs, household, or in or on humans or animals. Consult the Safety Data Sheet before handling.

Documents

Certificate of Analysis (CoA) by batch

Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.

Pricing & pack sizes

Pack sizes & pricing

Pricing on request — packs available from research to bulk quantities.

Prices exclude VAT/sales tax and shipping. Bulk and custom pack sizes available on request.

Synonyms

No alternate names recorded for this product.

Frequently asked questions

What is omeprazole used for?

Omeprazole is a proton pump inhibitor used to treat conditions such as gastroesophageal reflux disease (GERD), peptic ulcers, and Zollinger-Ellison syndrome by reducing stomach acid production.

What is the chemical formula and molecular weight of omeprazole?

The chemical formula of omeprazole is C17H19N3O3S, and its molecular weight is 345.42 g/mol.

How should omeprazole be stored?

Omeprazole should be stored at temperatures between 2 to 8 °C, protected from light and moisture.

What grade of omeprazole does Molekula supply?

Molekula supplies omeprazole in research grade, suitable for laboratory use.

Can Molekula supply omeprazole in bulk quantities?

Yes, Molekula can supply omeprazole in bulk quantities—please contact our sales team for pricing and availability.

What documentation comes with an omeprazole order?

Each order includes a Certificate of Analysis (CoA) and safety data sheet (SDS); additional documentation can be provided upon request.

Ready to order or need a custom pack?

Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.

Talk to a chemist
Documents Pricing
Request a quote
Tell us what you need and our sales team will come back with pricing and lead times.
Full name
Email
Product
Quantity
Note