Diphenhydramine Hydrochloride
Tier C — Watch / tradeDiphenhydramine Hydrochloride
Targets：HRH1
Brand：Butix 2%, Benadryl
Indications (approved)：Hypersensitivity reaction
Regional status
Synthetic routes & intermediates2 routes
Routes are ordered originator first, then optimised / process (non-patent) routes; each lists steps, overall yield and the intermediate table (code / CAS / name) — ready for supplier sourcing and RFQ. Rendered by this site from structured data; no third-party route graphics used.
| Code | CAS No. | Intermediate |
|---|---|---|
| DIPHEN-003 | 108-01-0 | 2-(dimethylamino)ethanol |
| DIPHEN-004 | 91-01-0 | diphenylmethanol |
| DIPHEN-005 | 135513-20-1 | benzhydryl methanesulfonate |
Frequently asked questions
What are the approved indications of Diphenhydramine Hydrochloride?
Approved indications include: Hypersensitivity reaction.
When does the Diphenhydramine Hydrochloride patent expire?
No public expiry year is available for Diphenhydramine Hydrochloride yet; this page updates once verified.
How many synthesis routes are recorded for Diphenhydramine Hydrochloride?
2 synthesis routes are recorded; the shortest is 2 steps with / total yield. Intermediates in each route carry codes and CAS numbers.
Where can I buy Diphenhydramine Hydrochloride intermediates?
All intermediates in Diphenhydramine Hydrochloride routes have CAS profiles — you can submit an RFQ per CAS and it enters the Unibest matching pool.
How do I get a quote for Diphenhydramine Hydrochloride intermediates?
Open the CAS profile of the target intermediate from this page, or submit an RFQ directly — the CAS enters the matching flow automatically and the supply network responds with quotes.
Source: cross-verified data (structured fields only) · 2026-10-04