Cyproheptadine hydrochloride sesquihydrate
Cyproheptadine hydrochloride sesquihydrate (CAS: 41354-29-4; Formula: C21H21N · HCl · 1.5H2O; MW: 350.88) is a piperidine derivative primarily utilised in research. Its principal application involves structural studies of antihistamines. This compound serves as a valuable building block in chemical synthesis, particularly within the realm of heterocyclic chemistry. Available from Tech Serve Solutions, it is supplied with a purity of 99%.
- IUPAC
- 4-(5H-Dibenzo[a,d]cyclohepten-5-ylidene)-1-methyl-piperidine hydrochloride hydrate

Antihistamine Research
Used in structural studies to understand the properties and behaviour of antihistamine compounds. This research is crucial for developing new pharmaceutical agents.
Chemical Synthesis Intermediate
Serves as a building block in organic synthesis, particularly for creating more complex heterocyclic molecules. Its structure makes it valuable for exploring novel chemical pathways.
Research and Development
A versatile reagent for laboratory research and development purposes in various chemical and pharmaceutical fields. Supports investigations into compound derivatisation and property analysis.
| Molecular weight | 350.88 |
|---|---|
| Empirical formula | C21H21N · HCl · 1.5H2O |
| Assay | 99% |
| Solubility | 1 M NH4OH: soluble25 mg/mL, clear, colorless to faintly yellow |
| Application | Structural studies of an antihistimine1 |
| Melting point | 165 °C (dec.)(lit.) |

Hazard statements
- H302Harmful if swallowed
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22-36/37/38 |
| Safety statements (S) | 26 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Cyproheptadine hydrochloride sesquihydrate used for?
+
Cyproheptadine hydrochloride sesquihydrate (CAS: 41354-29-4) is primarily used for structural studies of antihistamines and as a building block in chemical synthesis, particularly for heterocyclic compounds.
What are the CAS number and formula for Cyproheptadine hydrochloride sesquihydrate?
+
The CAS number is 41354-29-4, and the empirical formula is C21H21N · HCl · 1.5H2O.
What grade and purity does Tech Serve Solutions supply?
+
Tech Serve Solutions supplies Cyproheptadine hydrochloride sesquihydrate with an assay of 99%. We do not represent this product as USP, BP, or EP grade.
How should Cyproheptadine hydrochloride sesquihydrate be handled safely?
+
Handle with appropriate personal protective equipment, including a dust mask (N95 recommended), eyeshields, and gloves. Avoid breathing dust and ensure adequate ventilation. It is harmful if swallowed and causes skin and eye irritation.
How is Cyproheptadine hydrochloride sesquihydrate packed and shipped?
+
Products are carefully packed to ensure stability during transit and are available for export globally. Specific packaging details can be provided upon request.
How can I request a sample or quote for Cyproheptadine hydrochloride sesquihydrate?
+
Please contact our sales team via the website or by calling us directly to request a sample or a quotation for Cyproheptadine hydrochloride sesquihydrate.
▶ Related products

1-(2-Fluorobenzyl)piperazine
C11H15FN2
Chemical Synthesis
1-(2-Fluorophenyl)biguanide hydrochloride
Chemical Synthesis

1-(2-Fluorophenyl)cyclopropanecarboxylic acid
C10H9FO2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine
C10H13FN2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine monohydrochloride
C10H13FN2 · HCl
Chemical Synthesis
1-(2-Furoyl)-1H-benzotriazole
C11H7N3O2
Chemical Synthesis
1-(2-Furoyl)piperazine
C9H12N2O2
Chemical Synthesis
1-(2-Hydroxy-5-methylphenyl)-3-phenyl-1,3-propanedione
Chemical Synthesis
▶ Explore more

3-Methyl-1,5-di-p-tolyl-1,4-pentazadiene
Chemical Synthesis

3-Methyl-1,5-pentanediol
Chemical Synthesis

3-Methyl-1-(2-methylphenyl)-1H-pyrazol-5-amine
C11H13N3
Chemical Synthesis
3-Methyl-1-(3′-sulfoamidophenyl)-5-pyrazolone
C10H11N3O3S
Chemical Synthesis