Molekula
Omeprazole - USP CRS
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Omeprazole USP CRS is a proton pump inhibitor primarily used in pharmaceuticals to reduce stomach acid production, treating conditions like gastroesophageal reflux disease (GERD) and ulcers. It is also employed as a chemical reference standard for analytical testing. This product has a CAS number of 73590-58-6, molecular formula C17H19N3O3S, and a molecular weight of 345.42. It must be stored at 2 to 8°C and carries a signal word of "Warning" for safety. Molekula supplies Omeprazole USP CRS from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
Pack sizes & pricing
Pricing on request — packs available from research to bulk quantities.
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Specifications
| Property | Value |
|---|---|
| Appearance | Undamaged packaging |
| Identification | Conforms to USP monograph |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | 2 to 8 °C |
| Transport Class | 9 |
| Packing Group | III |
| Acidity | Acid |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | White to off-white crystalline powder |
| Melting Point | 155 °C |
| Boiling Point | 599.99 °C at 760 mmHg |
| Vapour Pressure | 9.2 × 10⁻¹³ mmHg at 25 °C (Estimated) |
| pKa | pKa1 = 1.2 |
| log P (octanol/water) | 2.23 |
Source: PubChem CID 4594 (HSDB, DrugBank)
Identification
| Property | Value |
|---|---|
| SKU | 90035401 |
| CAS Number | 73590-58-6 |
| IUPAC Name | 6-methoxy-2-[(4-methoxy-3,5-dimethyl-2-pyridinyl)methylsulfinyl]-1H-benzimidazole |
| Molecular Formula | C17H19N3O3S |
| Molecular Weight | 345.42 |
| Exact Mass | 345.1147 |
| SMILES | CC1=CN=C(C(=C1OC)C)CS(=O)C2=NC3=C(N2)C=C(C=C3)OC |
| InChIKey | SUBDBMMJDZJVOS-UHFFFAOYSA-N |
| InChI | InChI=1S/C17H19N3O3S/c1-10-8-18-15(11(2)16(10)23-4)9-24(21)17-19-13-6-5-12(22-3)7-14(13)20-17/h5-8H,9H2,1-4H3,(H,19,20) |
| PubChem CID | 4594 |
| UN Number | UN3077 |
| REACH Code | Y110 |
| HTS Code | 29333941 |
| Tariff Code | 2933399990 |
Safety & GHS
-
Health Hazard
GHS07
-
Hazardous to the Environment
GHS09
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
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.
Synonyms
- Antra
- Audazol
- Losec
- Mopral
- Omapren
- Omepral
- omeprazole
- Omeprazon
- Omeprol
- Sanamidol
Frequently asked questions
What is Omeprazole USP CRS commonly used for?
Omeprazole USP CRS is primarily used as a reference standard for analytical testing in pharmaceutical quality control, ensuring the purity and potency of omeprazole in drug formulations.
What is the chemical formula and molecular weight of Omeprazole USP CRS?
The chemical formula is **C₁₇H₁₉N₃O₃S**, and the molecular weight is **345.42 g/mol**.
How should Omeprazole USP CRS be stored?
Store at **2–8°C** in a dry, well-ventilated area, protected from light and moisture.
What grade of Omeprazole is this, and how is it different from other grades?
This is **USP CRS (United States Pharmacopeia Certified Reference Standard)**, meeting strict purity and documentation requirements for analytical reference use, unlike bulk or technical grades.
Can Molekula supply Omeprazole USP CRS in bulk quantities?
Molekula supplies Omeprazole USP CRS in limited bulk quantities for research and analytical purposes; contact us for specific availability and pricing.
What documentation comes with an order of Omeprazole USP CRS?
Each order includes a **Certificate of Analysis (CoA)**, **Safety Data Sheet (SDS)**, and **USP CRS documentation** verifying compliance with USP standards.
Ready to order or need a custom pack?
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