Dimethindene maleate
- CAS No.
- 3614-69-5
- Chemical Name:
- Dimethindene maleate
- Synonyms
- DIMETINDENE MALEATE;Dimetindine Maleate;su-6518;fenistil;fenostil;NSC 107677;fenistil-retard;UNII:6LL60J9E0O;Einecs 222-789-2;forhistalmaleate
- CBNumber:
- CB6443672
- Molecular Formula:
- C24H28N2O4
- Molecular Weight:
- 408.49
- MDL Number:
- MFCD00072146
- MOL File:
- 3614-69-5.mol
- MSDS File:
- SDS
- TDS File:
- TDS
| Melting point | 159-161℃ |
|---|---|
| storage temp. | -20°C Freezer, Under inert atmosphere |
| solubility | Slightly soluble in water, soluble in methanol |
| form | Solid |
| color | White to Pale Beige |
| Major Application | pharmaceutical (small molecule) |
| InChI | 1S/C20H24N2.C4H4O4/c1-15(19-10-6-7-12-21-19)20-17(11-13-22(2)3)14-16-8-4-5-9-18(16)20;5-3(6)1-2-4(7)8/h4-10,12,15H,11,13-14H2,1-3H3;1-2H,(H,5,6)(H,7,8)/b;2-1- |
| InChIKey | SWECWXGUJQLXJF-BTJKTKAUSA-N |
| SMILES | C1(C(C)C2=NC=CC=C2)=C(CC2=CC=CC=C12)CCN(C)C.C(/C(=O)O)=C/C(=O)O |
| FDA UNII | 6LL60J9E0O |
| UNSPSC Code | 41116107 |
| NACRES | NA.24 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |   GHS07,GHS09 |
|---|---|
| Signal word | Warning |
| Hazard statements | H302-H411 |
| Precautionary statements | P264-P270-P301+P312-P330-P501 |
| WGK Germany | WGK 3 |
| Storage Class | 11 - Combustible Solids |
| Hazard Classifications | Acute Tox. 4 Oral |
| Toxicity | LD50 in rats (mg/kg): 26.8 i.v.; 618.2 orally (Barrett) |
Dimethindene maleate price More Price(29)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | D2205000 | Dimetindene maleate European Pharmacopoeia (EP) Reference Standard | 3614-69-5 | 10 mg | $254 | 2026-04-30 | Buy |
| Sigma-Aldrich | D2205000 | Dimetindene maleate European Pharmacopoeia (EP) Reference Standard | 3614-69-5 | d2205000 | $220 | 2024-03-01 | Buy |
| Cayman Chemical | 40649 | Dimethindene (maleate) ≥98% | 3614-69-5 | 5mg | $87 | 2026-04-30 | Buy |
| Cayman Chemical | 40649 | Dimethindene (maleate) ≥98% | 3614-69-5 | 10mg | $165 | 2026-04-30 | Buy |
| Cayman Chemical | 40649 | Dimethindene (maleate) ≥98% | 3614-69-5 | 25mg | $392 | 2026-04-30 | Buy |
Dimethindene maleate Chemical Properties, Uses, Production
Chemical Properties
White or almost white, crystalline powder.
Originator
Fenistil,Zyma,W. Germany,1961
Uses
Dimethindene Maleate is a salt of Dimethindene which is an antihistamine/anticholinergic used orally and locally as an antipruritic. Dimethindene is an H1-antagonist of high potency.
Uses
Antihistaminic.
Definition
ChEBI: Dimetindene maleate is an indene.
Manufacturing Process
26 grams of 2-ethylpyridine is added dropwise with cooling to 20°C and in an
atmosphere of nitrogen to a stirred solution of 650 ml of an 0.37 molar
solution of phenyl lithium in benzene. After two hours a solution of 10 grams
of 2-(2-dimethylaminoethyl)-indan-1-one in 50 ml of dry ether is added over
a period of five minutes while stirring and cooling to room temperature. After
standing for 24 hours the organo-lithium compounds are decomposed by the
addition of 50 ml of water with external cooling. After separating the water
phase from the organic solution, the latter is washed several times with 50 ml
of water, and then extracted with a mixture of 40 ml of concentrated
hydrochloric acid and 100 ml of water.
The acidic solution, containing the 2-(2-dimethylaminoethyl)-1-[1-(2-pyridyl)-
ethyl]-indan-1-ol is heated on the steam bath for thirty minutes to effect
dehydration to the desired indene derivative. The solution is cooled, made
strongly basic with an aqueous solution of ammonia and then extracted with
ether. The ether phase is dried over sodium sulfate, filtered, evaporated and
the residue distilled.
At 15 mm pressure the excess of 2-ethylpyridine is removed, at 120°C/0.5
mm some unreacted 2-(2-dimethylaminoethyl)-indene distills and at 165°-
175°C/0.5 mm the 2-(2-dimethylaminoethyl)-3-[1-(2-pyridyl)-ethyl]-indene is
collected. It may be converted to an aqueous solution of the dihydrochloride
by dissolving it in the appropriate amount of dilute hydrochloric acid.
To a solution of 1.0 gram of 2-(2-dimethylaminoethyl)-3[1-(2-pyridyl)-ethyl]-
indene in 10 ml of ethanol is added while stirring and heating 0.4 gram of
maleic acid. On cooling the 2-(2-dimethylaminoethyl)-3-[1-(2-pyridyl)-ethyl]-
indene maleate crystallizes, is filtered off, washed with a small amount of
ethanol and recrystallized from ethanol, MP 158°C.
brand name
Forhistal Maleate (Ciba-Geigy).
Therapeutic Function
Antihistaminic
General Description
Dimethindene maleate, (±)2-[1-[2-[2-dimethylamino)ethyl]-inden-3-yl]ethyl]pyridinebimaleate (1:1) (Forhistal Maleate), is a white to off-whitecrystalline powder that has a characteristic odor and is sparinglysoluble in water. This potent antihistaminic agent may beconsidered a derivative of the unsaturated propylamines. Theprincipal side effect is some sedation or drowsiness. The antihistaminicactivity resides mainly in the levorotatory isomer.
Dimethindene maleate Preparation Products And Raw materials
Raw materials
Preparation Products
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Shanghai Synchem Pharma Co., ltd | 21-619849051-1 18521059765 | synchempharma@aliyun.com | China | 4988 | 55 |
| Beri Pharma Co., Ltd. | 0756-8699456 13427714006 | sales@zhberi.com | China | 199 | 58 |
| Shanghai Boyle Chemical Co., Ltd. | 021-50182298 021-50180596 | sales@boylechem.com | China | 2202 | 55 |
| J & K SCIENTIFIC LTD. | 18210857532 18210857532 | jkinfo@jkchemical.com | China | 96815 | 76 |
| LGM Pharma | 1-(800)-881-8210 | inquiries@lgmpharma.com | United States | 2110 | 70 |
| Nanjing Chemlin Chemical Co., Ltd | 025-83697070 13770331960 | info@chemlin.com.cn | China | 16305 | 64 |
| UHN Shanghai Research & Development Co., Ltd. | 021-58958002 18930822973 | sales@uhnshanghai.com | China | 997 | 58 |
| Quality Control Solutions Ltd. | 0755-66853366 13670046396 | orders@qcsrm.com | China | 18188 | 56 |
| Finetech Industry Limited | 027-87465837 19945049750 | sales@finetechnology-ind.com | China | 9331 | 58 |
| Hangzhou Dingyan Chem Co., LTD | 0571-87157530-8002 15267169049 | sales@dingyanchem.com | China | 2611 | 58 |
View Latest Price from Dimethindene maleate manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-09-15 | DIMETHINDENE MALEATE
3614-69-5
|
0.99 | RongNa Biotechnology Co.,Ltd | ||||
 |
2026-08-08 | DIMETHINDENE MALEATE
3614-69-5
|
99.0%min | 200kg | Hangzhou ICH Biofarm Co., Ltd | |||
 |
2026-07-16 | Dimethindene maleate
3614-69-5
|
$30.00-113.00 | 99.87% | 10g | TargetMol Chemicals Inc. |
-
- DIMETHINDENE MALEATE
3614-69-5
- 0.99
- RongNa Biotechnology Co.,Ltd
-
- DIMETHINDENE MALEATE
3614-69-5
- 99.0%min
- Hangzhou ICH Biofarm Co., Ltd
-
- Dimethindene maleate
3614-69-5
- $30.00-113.00
- 99.87%
- TargetMol Chemicals Inc.
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