CAS 19804-27-4: 4-Methyldiphenhydramine
Description:4-Methyldiphenhydramine is an antihistamine belonging to the diphenhydramine class, primarily used for its sedative and anti-allergic properties. It is characterized by its chemical structure, which includes two phenyl rings and a methyl group attached to the nitrogen atom of the diphenhydramine backbone. This modification enhances its pharmacological effects and alters its potency and side effect profile compared to its parent compound. The substance is typically a white to off-white crystalline powder, exhibiting low solubility in water but higher solubility in organic solvents. Its mechanism of action involves antagonism of the H1 histamine receptor, which helps alleviate symptoms of allergic reactions, such as itching and runny nose. Additionally, due to its sedative effects, it is sometimes used in over-the-counter sleep aids. Safety and efficacy profiles are important considerations, as with any medication, and potential side effects may include drowsiness, dry mouth, and dizziness. As with all pharmaceuticals, proper dosage and medical guidance are essential for safe use.
Formula:C18H23NO
InChI:InChI=1S/C18H23NO/c1-15-9-11-17(12-10-15)18(20-14-13-19(2)3)16-7-5-4-6-8-16/h4-12,18H,13-14H2,1-3H3
InChI key:InChIKey=PJUYQWIDNIAHIZ-UHFFFAOYSA-N
SMILES:O(CCN(C)C)C(C=1C=CC=CC1)C2=CC=C(C=C2)C
- Synonyms:
- 2-((p-Methyl-alpha-phenylbenzyl)oxy)ethyl(dimethyl)amine
- 4-Methyldiphenhydramine
- Ethanamine, N,N-dimethyl-2-[(4-methylphenyl)phenylmethoxy]-
- Ethylamine, N,N-dimethyl-2-[(p-methyl-α-phenylbenzyl)oxy]-
- N,N-Dimethyl-2-[(4-methylphenyl)phenylmethoxy]ethanamine
- N,N-Dimethyl-N-[2-(p-methyl-α-phenylbenzyloxy)ethyl]amine
- N,N-dimethyl-2-[(4-methylphenyl)(phenyl)methoxy]ethanamine
- Toladryl
- p-Methylbenzhydryl 2-dimethylaminoethyl ether
- p-Methyldiphenhydramine
- See more synonyms

Orphenadrine Related Compound F (N,N-Dimethyl-2-[phenyl(p-tolyl)methoxy]ethanamine citrate)
Ref: 45-1479064
50mg | 1,552.00 € |

Ethanamine, N,N-dimethyl-2-[(4-methylphenyl)phenylmethoxy]-
Ref: IN-DA002B92
1g | To inquire | ||
10mg | 74.00 € | ||
50mg | 184.00 € | ||
100mg | 254.00 € | ||
250mg | 606.00 € |

Toladryl (Diphenhydramine EP Impurity B, Dimenhydrinate EP Impurity G, Orphenadrine EP Impurity F, Orphenadrine USP Related Compound F (Free Form))
Ref: 4Z-T-442001
5mg | To inquire | ||
10mg | To inquire | ||
25mg | To inquire | ||
50mg | To inquire | ||
100mg | To inquire |

Toladryl
Controlled ProductRef: TR-T530800
25mg | 259.00 € | ||
50mg | 346.00 € | ||
100mg | 602.00 € |

Toladryl
Controlled ProductRef: 3D-FT28302
10mg | 344.00 € | ||
25mg | 449.00 € | ||
50mg | 689.00 € | ||
100mg | 1,052.00 € |

Toladryl
Ref: TM-T200797
10mg | To inquire | ||
50mg | To inquire |