Pramoxine hydrochloride
- CAS No.
- 637-58-1
- Chemical Name:
- Pramoxine hydrochloride
- Synonyms
- PRAMOXINE HCL;PRAMOXINE HCL USP;pramocaine hydrochloride;proctofoam;Pramoxine HCI;Pramocaine HCl;PraMoxine HCL API;Pramoxine Hcl USP38;Pramocaine Impurity;PRAMOXINE HYDROCHLORIDE
- CBNumber:
- CB5675186
- Molecular Formula:
- C17H28ClNO3
- Molecular Weight:
- 329.86
- MDL Number:
- MFCD00054323
- MOL File:
- 637-58-1.mol
- MSDS File:
- SDS
- TDS File:
- TDS
| Product description | Number | Pack Size | Price |
| Pramoxine hydrochloride United States Pharmacopeia (USP) Reference Standard | 1554002 | 400mg | $501 |
| Pramoxine hydrochloride analytical standard, ≥98% | P9422 | 10g | $65.5 |
| Pramoxine Hydrochloride | P3025 | 5G | $41 |
| Pramoxine Hydrochloride | P3025 | 25G | $132 |
| Pramoxine (hydrochloride) ≥98% | 30077 | 5g | $36 |
| More product size | |||
| Melting point | 181-183° |
|---|---|
| storage temp. | Inert atmosphere,Room Temperature |
| solubility | Chloroform (Slightly), Methanol (Slightly) |
| form | Solid |
| color | White to Off-White |
| Stability | Hygroscopic |
| Major Application |
forensics and toxicology pharmaceutical (small molecule) |
| Cosmetics Ingredients Functions | ANTIOXIDANT |
| InChI | InChI=1S/C17H27NO3.ClH/c1-2-3-12-20-16-5-7-17(8-6-16)21-13-4-9-18-10-14-19-15-11-18;/h5-8H,2-4,9-15H2,1H3;1H |
| InChIKey | SYCBXBCPLUFJID-UHFFFAOYSA-N |
| SMILES | C1(OCCCN2CCOCC2)=CC=C(OCCCC)C=C1.Cl |
| LogP | 3.477 (est) |
| CAS DataBase Reference | 637-58-1(CAS DataBase Reference) |
| EWG's Food Scores | 1-3 |
| FDA UNII | 88AYB867L5 |
| UNSPSC Code | 41116107 |
| NACRES | NA.24 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H302-H315-H319-H335 | |||||||||
| Precautionary statements | P261-P264-P270-P301+P312-P302+P352-P305+P351+P338 | |||||||||
| target organs | Respiratory system | |||||||||
| PPE | dust mask type N95 (US), Eyeshields, Gloves | |||||||||
| Hazard Codes | Xi,Xn | |||||||||
| Risk Statements | 22-36/37/38 | |||||||||
| Safety Statements | 26-36 | |||||||||
| WGK Germany | 3 | |||||||||
| RTECS | QD8750000 | |||||||||
| HS Code | 2934990002 | |||||||||
| Storage Class | 11 - Combustible Solids | |||||||||
| Hazard Classifications | Acute Tox. 4 Oral Eye Irrit. 2 Skin Irrit. 2 STOT SE 3 |
|||||||||
| Hazardous Substances Data | 637-58-1(Hazardous Substances Data) | |||||||||
| Toxicity | LD50 i.v. in mice: 79.5 ±2.7 mg/kg (Schmidt); LD50 in mice (mg/kg): 300 i.p., 750 s.c. (Monash, Gibbs) | |||||||||
| NFPA 704 |
|
Pramoxine hydrochloride price More Price(56)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 1554002 | Pramoxine hydrochloride United States Pharmacopeia (USP) Reference Standard | 637-58-1 | 400mg | $501 | 2026-04-30 | Buy |
| Sigma-Aldrich | P9422 | Pramoxine hydrochloride analytical standard, ≥98% | 637-58-1 | 10g | $65.5 | 2025-07-31 | Buy |
| TCI Chemical | P3025 | Pramoxine Hydrochloride | 637-58-1 | 5G | $41 | 2026-04-30 | Buy |
| TCI Chemical | P3025 | Pramoxine Hydrochloride | 637-58-1 | 25G | $132 | 2026-04-30 | Buy |
| Cayman Chemical | 30077 | Pramoxine (hydrochloride) ≥98% | 637-58-1 | 5g | $36 | 2026-04-30 | Buy |
Pramoxine hydrochloride Chemical Properties,Uses,Production
Description
Pramoxine, also known as pramocaine, is different from other local anesthetic compounds in chemical structure. Active groups which are carboxylic acid derivatives like ester and amide are not present in this molecule. The drug molecule consists of ether functional groups that are much less active on a chemical level. The presence of the free radical morpholine in this compound is the cause of the reduction of the factor of toxicity and pharmacological activity. In pramoxine, toxicity is reduced but the local anesthetic affect is maintained.
Originator
Tronothane, Abbott, US ,1954
Uses
Pramoxine Hydrochloride is used as a local anaesthetic and often in anti-itch formulations that provides temporary relief from itching caused by insect bites, minor skin irritations, poison ivy, sunburn and more.
Indications
Pramoxine hydrochloride (Itch-X, PrameGel, Prax, Tronothane, AmLactin AP) is a local anesthetic that is structurally similar to dyclonine and unrelated to the esteror amide-type compounds.Apply to affected area t.i.d. to q.i.d., as directed by a physician. Useful for patients sensitive to ester and/or amide anesthetics. Onset of anesthesia is within minutes. Duration of anesthesia is 2 to 4 hours.
Definition
ChEBI: Pramoxine hydrochloride is an aromatic ether.
Manufacturing Process
About 5.6 g of potassium hydroxide is dissolved in about 150 cc of refluxing ethanol, and then about 16.6 g of hydroquinone monobutyl ether is added to the alcoholic solution. When the hydroquinone is dissolved, about 16.3 g of γmorpholinopropyl chloride (dissolved in a small amount of ethanol) is added to the refluxing solution. The solution is refluxed for about 24 hours and then cooled. The product is recovered by filtering the reaction mixture and then removing the solvent by vacuum distillation. The oily residue is acidified and shaken with ether. The acidic phase is made strongly alkaline with 40% sodium hydroxide, and the oil which separates is extracted into ether. The ethereal phase is dried, and the solvent removed by vacuum distillation. The product distills at 183° to 184°C at a pressure of 2.8 mm. The hydrochloride salt of the foregoing base is prepared by dissolving the base in ether and acidifying with hydrochloric acid and is found to have a MP of 181° to 183°C.
brand name
Tronolane (Ross); Tronothane (Abbott).
Therapeutic Function
Local anesthetic
Clinical Use
Pramoxine is an amino-ether which, like dyclonine, is used as a topical agent in the form of its hydrochloride. Pramoxine hydrochloride may be used for anaesthesia of minor skin wounds and the relief of haemomhoids and other anorectal disorders.The drug is an ingredient of many proprietary topical products, and the U.S.P. has official cream and gel formulations.
Veterinary Drugs and Treatments
A surface and local anesthetic to peripheral nerves not related structurally to procaine-type anesthetics, pramoxine is often added to other topicals to reduce pain and/or itching.
Mode of action
Pramoxine hydrochloride is the hydrochloride salt form of pramoxine, a morpholine derivative with local anesthetic property. Pramocaine hydrochloride decreases the permeability of the neuronal membrane to sodium ions by reversibly binding to and inhibiting voltage-gated sodium channels. This results in stabilization of the membrane and, thereby inhibiting the ionic fluxes required for membrane depolarization, hence resulting in the failure to initiate a propagated action potential and subsequent conduction blockade.
References
[1] Patent: CN107892677, 2018, A. Location in patent: Paragraph 0019; 0021
Pramoxine hydrochloride Preparation Products And Raw materials
Raw materials
1of2
Preparation Products
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Wuhan Aoliqisi New Material Technology Co., Ltd. | +86-13545906766; 13545906766 | sales@whaop.com | China | 263 | 58 |
| Apeloa production Co.,Limited | +86-19131931000 | admin@apcl.com.cn | China | 861 | 58 |
| Hebei Chuanghai Biotechnology Co., Ltd | +86-15350571055 | Sibel@chuanghaibio.com | China | 8738 | 58 |
| shandong perfect biotechnology co.ltd | +86-53169958659 +86-13153181156 | sales@sdperfect.com | China | 294 | 58 |
| Henan Bao Enluo International TradeCo.，LTD | +86-17331933971 | deasea125996@gmail.com | China | 2472 | 58 |
| Xiamen Wonderful Bio Technology Co., Ltd. | +86-13043004613 | Sara@xmwonderfulbio.com | China | 283 | 58 |
| Hebei Xinsheng New Material Technology Co., LTD. | +86-16632316109 | xinshengkeji@xsmaterial.com | China | 1085 | 58 |
| Shaanxi Franta Biotechnology Co., Ltd | +86-13082019107 | admin@flanderff.com | China | 244 | 58 |
| Shaanxi TNJONE Pharmaceutical Co., Ltd | sarah@tnjone.com | China | 1143 | 58 | |
| Hebei Ganmiao New material Technology Co., LTD | +86-17332992504 | sales8@hbganmiao.com | China | 300 | 58 |
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View Lastest Price from Pramoxine hydrochloride manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-08-02 | Pramoxine hydrochloride
637-58-1
|
0.99 | RongNa Biotechnology Co.,Ltd | ||||
 |
2026-07-15 | Pramocaine hydrochloride
637-58-1
|
$29.00 | 99.15% | 10g | TargetMol Chemicals Inc. | ||
 |
2026-07-15 | Pramocaine hydrochloride
637-58-1
|
$29.00 | 99.15% | 10g | TargetMol Chemicals Inc. |
-
- Pramoxine hydrochloride
637-58-1
- 0.99
- RongNa Biotechnology Co.,Ltd
-
- Pramocaine hydrochloride
637-58-1
- $29.00
- 99.15%
- TargetMol Chemicals Inc.
-
- Pramocaine hydrochloride
637-58-1
- $29.00
- 99.15%
- TargetMol Chemicals Inc.
