Molekula
Cetirizine dihydrochloride - 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
Cetirizine dihydrochloride USP CRS is a second-generation antihistamine reference standard used primarily in pharmaceutical research, formulation development, and analytical testing to ensure drug purity and efficacy. It is a key compound for validating assays, method development, and quality control in manufacturing. Catalogue details: CAS 83881-52-1, molecular formula C21H25ClN2O3·2HCl, molecular weight 461.81 g/mol, stored at ambient conditions, with a signal word of Warning. Molekula supplies Cetirizine dihydrochloride 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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Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | Undamaged packaging |
| Conforms to USP | Conforms to USP monograph |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Acid |
Identification
| Property | Value |
|---|---|
| SKU | 90037339 |
| CAS Number | 83881-52-1 |
| Molecular Formula | C21H25ClN2O3 · 2HCl |
| Molecular Weight | 461.81 |
| SMILES | Cl.O=C(O)COCCN1CCN(CC1)C(C=2C=CC=CC2)C3=CC=C(Cl)C=C3 |
| REACH Code | Y110 |
| HTS Code | 29335995 |
| Tariff Code | 2933599590 |
Safety & GHS
-
Health Hazard
GHS07
Hazard statements
- H302 Harmful if swallowed
Precautionary statements
- P264 Wash thoroughly after handling
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+312 IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell
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
No alternate names recorded for this product.
Frequently asked questions
What is cetirizine dihydrochloride USP CRS commonly used for?
Cetirizine dihydrochloride USP CRS is primarily used as a reference standard in pharmaceutical quality control for testing cetirizine-based antihistamine formulations.
What is the chemical formula and molecular weight of cetirizine dihydrochloride?
The chemical formula is **C₂₁H₂₅ClN₂O₃·2HCl**, and the molecular weight is **461.81 g/mol**.
What is the hazard classification (signal word) for cetirizine dihydrochloride?
The signal word is **Warning**, indicating it poses moderate hazards under normal handling conditions.
How should cetirizine dihydrochloride USP CRS be stored?
Store at **ambient temperature** in a dry, well-ventilated area, away from incompatible substances.
Does Molekula supply cetirizine dihydrochloride USP CRS in bulk quantities?
Yes, Molekula can supply cetirizine dihydrochloride USP CRS in bulk, subject to minimum order quantities and regulatory compliance.
What documentation comes with an order of cetirizine dihydrochloride USP CRS?
Each order includes a **Certificate of Analysis (CoA)**, **Material Safety Data Sheet (MSDS)**, and **batch-specific documentation** for traceability.
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.