Cetirizine

Cetirizine (CAS registry number 83881-51-0) is supplied as a chemical raw material for formulation and synthesis work. The molecular formula is C21H25ClN2O3, giving a molecular weight of 388.9 g/mol. This is a aromatic compound of 21 carbon with 6 heteroatoms, built on a ring-unsaturated carbon skeleton; of medium-to-high molecular weight. Documents are issued per shipment rather than per catalogue entry: each batch is accompanied by a Certificate of Analysis, and safety data sheets, technical datasheets and third-party test reports are supplied on request for export documentation.

Product Overview

Applications

Pharmaceutical Intermediates &amp；APIs

Recorded applications for this entry: Pharmaceutical Intermediates &amp, APIs. Where your formulation differs, the relevant point to check is not the use category but the impurity profile — tell us the end use and we will map it to the specification.

For export enquiries, include the destination country and the intended application in your message. This lets us confirm whether the grade needs any additional documentation beyond the standard per-batch COA, and whether the packing suits the planned transport mode.

Packaging & Storage

Packing is per order / batch confirmation (not published) and purity is per batch COA (not published). Both are agreed at order stage; for export movements the packing is chosen with the transport mode and destination in mind, and drum, bag or repacked formats are all available. Storage: sealed, in a cool and dry place, away from direct sunlight.

Each shipment is accompanied by a batch Certificate of Analysis. For cross-border orders, MSDS, technical datasheets and third-party test reports can be issued to match your documentation set; declare the destination country when you enquire so the paperwork matches on arrival. Contact: info@591daili.com · +86-18553102138.

Quality & Documentation

COA (Certificate of Analysis) is provided with every batch. MSDS/technical data sheets and third-party test reports are available on request. Purity and packaging are subject to batch COA and order confirmation.

Molecular Character — Selection Notes

What the structure means for your process

From a process-selection standpoint, This product is an aromatic organic carrying 3 oxygen, 2 nitrogen, 1 halogen, and leans lipophilic, preferring the organic phase. defines where this material fits and where it does not. Three points deserve checking before purchase: structural type, which sets the reactive sites and compatibility; polarity class, which dictates the solvent system; and molecular-weight range, which governs dosage and dispersion feasibility.

For this product specifically: the ring backbone gives better heat and chemical stability than an aliphatic equivalent of equal carbon count, but aromatic systems oxidise and discolour readily at elevated temperature. If your process holds a hot section, run a thermal-stability comparison at the sample stage rather than discovering it in production.

How it behaves in your formulation

Lipophilic character means it prefers the oil phase. In a predominantly aqueous formulation it will form discrete droplets and reduce stability, so emulsification or pre-dissolution in a compatible solvent is normally required. Confirm this at trial stage — creaming in the finished product is far harder to trace back.

At 320~500 g/mol the species exists in water as a colloid or polymer segments and measurably changes rheology once dispersed, making it useful as a thickener, dispersant, film former or release matrix. Check shear stability separately — a wide molecular-weight distribution can lose viscosity faster than expected under strong shear.

If you are evaluating this as an alternative to an incumbent supplier, the difficulty for aromatic products is rarely the main component but the impurity profile. The stated impurity distribution may differ from what the incumbent actually delivers, so comparing two or three sample batches before switching is faster than chasing a deviation afterwards.

Storage, handling and documents

A few points on receipt and storage. handle halogenated material with standard precautions and avoid inhalation of vapour; control dust and wear eye protection, as the material can irritate mucous membranes; pre-disperse high-molecular-weight material, as adding it dry into a viscous medium clumps; pre-dissolve lipophilic material in a compatible solvent before introducing it to the aqueous phase; specific handling and PPE follow the MSDS issued with the batch.. For inbound or outbound shipments, confirm packing group and transport classification in advance to avoid demurrage caused by documentation mismatch.

On documentation: the batch COA travels with every shipment; MSDS, technical datasheets and third-party test reports can be issued on request. If your quality system requires supplier qualification documents — business licence, production permit, management-system certificates — state the destination country and the document list when you enquire, and we will assemble the set at once.

Technical Profile

Cetirizine is a pharmaceutical intermediate or API compound with CAS registry number 83881-51-0 and molecular formula C21H25ClN2O3 (molecular weight 388.9), belonging to the pharmaceutical intermediates and APIs segment of chemical raw materials.

This entry belongs to the pharmaceutical intermediates and APIs range, where the material is normally supplied against a stated grade rather than blended to a formula. Where a buyer works to a published standard, the useful conversation is about which data the grade is qualified against and how deviations are handled, rather than about the use category itself.

Cetirizine is typically applied in Pharmaceutical Intermediates &amp, APIs.

Jinan Shenghe Chemical Co., Ltd. supplies Cetirizine with stable inventory and provides a Certificate of Analysis (COA) with each batch; custom repacking is available per process requirement.

CAS number: 83881-51-0 — searchable in PubChem for physicochemical, safety and regulatory data.

Its molecular formula C21H25ClN2O3 comprises 21 C, 25 H, 1 Cl, 2 N, 3 O atoms.

Also known as: Cetirizine

Category: pharmaceutical intermediates and APIs

Within the pharmaceutical intermediates and APIs segment, the technical questions differ from other categories. Buyers here are usually working to a specification or a standard rather than to a general description, so the useful conversation covers impurity profile, particle size or assay method, and which data the grade is qualified against.

Application terms recorded for this entry: Pharmaceutical Intermediates &amp, APIs. If your specification differs, the point to check is not the use category but the impurity limits — send us the standard you work to and we will confirm what can be supplied against it.

For qualification work, we can supply a sample batch with full documentation so that incoming QC has something concrete to compare against. Mentioning the destination country at enquiry stage also lets us match the paperwork set to your import requirements.

Purity available is per batch COA (not published), with packing per order / batch confirmation (not published). Neither value is asserted in advance: every batch ships with a Certificate of Analysis carrying the measured results, so incoming QC compares against real data rather than a catalogue claim. MSDS, technical datasheets and third-party test reports can be issued for qualification purposes — state the standard you qualify against when you enquire.

Supplier: Jinan Shenghe Chemical Co., Ltd.. For export orders, state the destination country, the transport mode and the document set you need when you enquire — packing, paperwork and quotation terms all follow from those three. Samples can be arranged for qualification, and lead time depends on stock and order size rather than on a fixed promise.

Email: info@591daili.com · Tel/WhatsApp: +86-18553102138

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