Pyrilamine maleate salt
Pyrilamine maleate salt (CAS: 59-33-6), a histamine H1 receptor antagonist with the molecular formula C17H23N3O · C4H4O4 and a molecular weight of 401.46 g/mol. This compound is primarily utilised in research settings as a pharmacological tool, particularly in studies involving cell signaling and neuroscience due to its action on the histamine H1 receptor. It serves as a valuable reagent for investigating histaminergic pathways and related biological processes.
- IUPAC
- Mepyramine maleate salt,N-(4-Methoxyphenyl)methyl-N′,N′-dimethyl-N-(2-pyridinyl)-1,2-ethanediamine maleate salt
- Synonyms
- Mepyramine maleate saltN-(4-Methoxyphenyl)methyl-N′,N′-dimethyl-N-(2-pyridinyl)-1,2-ethanediamine maleate salt

Histamine H1 Receptor Antagonism Research
Pyrilamine maleate salt functions as a potent antagonist of the histamine H1 receptor. It is used in laboratory research to investigate the physiological roles of histamine and the mechanisms of histamine H1 receptor-mediated signaling pathways in various biological systems.
Neuroscience and Cell Signaling Studies
This compound is employed as a pharmacological probe in neuroscience research to explore the involvement of histaminergic neurotransmission in central nervous system functions. Its application extends to cell biology for studying cellular responses influenced by histamine.
Bioactive Small Molecule Research
As a well-characterized bioactive small molecule, pyrilamine maleate salt is a useful reagent for drug discovery and development research. It can serve as a reference compound or a starting point for the design of novel therapeutics targeting histamine receptors.
| Molecular weight | 401.46 |
|---|---|
| Empirical formula | C17H23N3O · C4H4O4 |

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) | 26-36/37 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Gene Information | human ... HRH1(3269) |
|---|
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 Pyrilamine maleate salt used for?
+
Pyrilamine maleate salt is primarily used as a research tool to study histamine H1 receptor antagonism, investigate histaminergic pathways, and explore its effects in neuroscience and cell signaling research.
What are the CAS number and molecular formula of Pyrilamine maleate salt?
+
The CAS number for Pyrilamine maleate salt is 59-33-6, and its molecular formula is C17H23N3O · C4H4O4.
What grade and purity does Tech Serve Solutions supply for Pyrilamine maleate salt?
+
Tech Serve Solutions supplies Pyrilamine maleate salt as a research-grade chemical. We do not represent it as USP, BP, EP, or any other pharmacopoeial grade unless explicitly stated in the product specifications.
What are the main safety hazards associated with Pyrilamine maleate salt?
+
Pyrilamine maleate salt is classified with the GHS07 symbol, indicating a Warning signal word. It carries hazard statements H302 (Harmful if swallowed), H315 (Causes skin irritation), H319 (Causes serious eye irritation), and H335 (May cause respiratory irritation). Appropriate personal protective equipment including a dust mask (type N95 US), eyeshields, and gloves should be used when handling.
Is Pyrilamine maleate salt suitable for therapeutic use?
+
Pyrilamine maleate salt is supplied for research and laboratory use only. Tech Serve Solutions does not provide information or data regarding its suitability for therapeutic applications, and it is not intended for human or veterinary use.
How can I request a quote or sample for Pyrilamine maleate salt?
+
To request a quote or a sample of Pyrilamine maleate salt, please contact our sales department through the 'Contact Us' section of our website or by calling our direct sales line.
How is Pyrilamine maleate salt typically packed and exported?
+
Pyrilamine maleate salt is carefully packaged in suitable containers to ensure stability and safety during transport. As a global supplier, Tech Serve Solutions has extensive experience in exporting chemicals worldwide, adhering to all relevant international shipping regulations.
▶ Related products
![(±)-(E)-4-Ethyl-2-[(E)-hydroxyimino]-5-nitro-3-hexenamide (C8H13N3O4) — chemical structure, CAS 138472-01-2; Biochemicals & Reagents, fine chemical supplied by Tech Serve Solutions](/_next/image?url=https%3A%2F%2Fpub-f4d920c906024441a773a96f7098e551.r2.dev%2Fimages%2Fproducts%2F138472-01-2.png&w=3840&q=75)
(±)-(E)-4-Ethyl-2-[(E)-hydroxyimino]-5-nitro-3-hexenamide
C8H13N3O4
Biochemicals & Reagents![(±)-(E)-4-Ethyl-2-[(Z)-hydroxyimino]-5-nitro-3-hexen-1-yl-nicotinamide (C14H18N4O4) — chemical structure, CAS 162626-99-5; Biochemicals & Reagents, fine chemical supplied by Tech Serve Solutions](/_next/image?url=https%3A%2F%2Fpub-f4d920c906024441a773a96f7098e551.r2.dev%2Fimages%2Fproducts%2F162626-99-5.png&w=3840&q=75)
(±)-(E)-4-Ethyl-2-[(Z)-hydroxyimino]-5-nitro-3-hexen-1-yl-nicotinamide
C14H18N4O4
Biochemicals & Reagents
(±)-2,5-Dimethoxy-4-bromoamphetamine hydrobromide
Biochemicals & Reagents

(±)-2-(p-Methoxyphenoxy)propionic acid
C10H12O4
Biochemicals & Reagents
(±)-2-Amino-6,7-dihydroxy-1,2,3,4-tetrahydronaphthalene hydrobromide
C10H13NO2·HBr
Biochemicals & Reagents
(±)-2-Hydroxydecanoic acid
C10H20O3
Biochemicals & Reagents
(±)-3-Hydroxydecanoic acid
C10H20O3
Biochemicals & Reagents
(±)-3-Hydroxyoctanoic acid
C8H16O3
Biochemicals & Reagents▶ 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