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Nefopam hydrochloride

CAS No.
23327-57-3
Chemical Name:
Nefopam hydrochloride
Synonyms
NEFOPAM HCL;ajan;r738;ACUPAN;NAFOPAN HCL;NEFOPAM HYDROCHLORIDE;LABOTEST-BB LT00159839;fenazoxinehydrochloride;Nefopam HCl (Fenazoxine);BENZOXAZOCINE HYDROCHLORIDE
CBNumber:
CB5379273
Molecular Formula:
C17H20ClNO
Molecular Weight:
289.8
MDL Number:
MFCD00012750
MOL File:
23327-57-3.mol
Last updated:2024-03-28 16:55:20

Nefopam hydrochloride Properties

Melting point 238-242°
storage temp. 2-8°C
solubility H2O: soluble5mg/mL, clear
form powder
color white to beige
CAS DataBase Reference 23327-57-3(CAS DataBase Reference)
FDA UNII 685J48E13W
NCI Drug Dictionary nefopam hydrochloride

Pharmacokinetic data

Protein binding 73%
Excreted unchanged in urine <5%
Biological half-life 4 / -

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictograms
GHS06
Signal word  Danger
Hazard statements  H301+H311+H331
Precautionary statements  P261-P264-P280-P301+P310-P302+P352+P312-P304+P340+P311
Hazard Codes  T
Risk Statements  23/24/25
Safety Statements  36/37/39-45
RIDADR  3249
WGK Germany  3
HS Code  2933.49.2600
HazardClass  6.1(b)
PackingGroup  III
Toxicity LD50 in mice, rats (mg/kg): 119, 178 orally; 44.5, 28 i.v. (Baltes)
NFPA 704
0
3 0

Nefopam hydrochloride price More Price(21)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich SML0909 Nefopam hydrochloride ≥98% (HPLC) 23327-57-3 10mg $74.8 2024-03-01 Buy
Sigma-Aldrich SML0909 Nefopam hydrochloride ≥98% (HPLC) 23327-57-3 50mg $290 2024-03-01 Buy
TCI Chemical N1169 Nefopam Hydrochloride 23327-57-3 1G $40 2024-03-01 Buy
TCI Chemical N1169 Nefopam Hydrochloride 23327-57-3 5G $62 2024-03-01 Buy
TRC N389400 Nefopam Hydrochloride 23327-57-3 250mg $250 2021-12-16 Buy
Product number Packaging Price Buy
SML0909 10mg $74.8 Buy
SML0909 50mg $290 Buy
N1169 1G $40 Buy
N1169 5G $62 Buy
N389400 250mg $250 Buy

Nefopam hydrochloride Chemical Properties,Uses,Production

Chemical Properties

White to Off-White Solid

Originator

Ajan,Kettelhack Riker,W. Germany,1976

Uses

Nefopam hydrochloride has been used as a standard for the quantitative determination of tramadol by gas chromatography–mass spectrometry (GC/MS).

Uses

A cyclized analog of orphenadrine and diphenhydramine; representative of a new class of centrally acting skeletal muscle relaxants, the benzoxazocines. Analgesic; antidepressant.

Manufacturing Process

The starting material is prepared by reacting 2-benzoylbenzoic acid with thionyl chloride and then with 2-methylaminoethanol. 20.0 grams (0.07 mol) of N-(2-hydroxyethyl)-N-methyl-o-benzoylbenzamide is suspended in 100 ml tetrahydrofuran and then slowly added in small portions to a solution of 5.5 grams (0.14 mol) of lithium aluminum hydride in 150 ml tetrahydrofuran with cooling and stirring. The mixture is then refluxed for 18 hours, cooled and then to it is successively added 5.5 ml water, 5.5 ml of 3.75 N sodium hydroxide and 16 ml water. After removal of precipitated salts by filtration, the solution remaining is concentrated under reduced pressure and the residue dried to yield 19.5 grams of crude product. Yield after conversion to the hydrochloride salt and recrystallization is 17.0 grams (89%), MP 128° to 133°C.
5-methyl-1-phenyl-1,3,4,6-tetrahydro-5H-benz[f] -2,5-oxazocine is prepared as follows. 3.0 grams (0.011 mol) of 2-([N-(2-hydroxyethyl)-Nmethyl]amino)methylbenzhydrol, prepared as described above, 3.0 grams ptoluenesulfonic acid and 15 ml benzene are heated together with stirring until all the benzene is distilled off. The residual oil is heated to 105°C and held at this temperature for 1 hour, then cooled and dissolved in 30 ml water. This aqueous solution is then basified to pH 10.0 with 12 N sodium hydroxide, extracted with ether, and the extracts washed with water, dried over anhydrous sodium sulfate and the solvent removed under reduced pressure. The 2.26 grams (81%) oil remaining is converted to the hydrochloride salt, MP 238° to 242°C.

brand name

Acupan (3M Pharmaceuticals).

Therapeutic Function

Muscle relaxant, Antidepressant

Biochem/physiol Actions

Nefopam is a centrally-acting analgesic drug of the benzoxazocine chemical class. Nefopam is a non-opioid, but has a potentiating effect on morphine and other opioids. Its mechanism of action is not certain, but may involve its action as a dopamine/serotonin/norepinephrine reuptake inhibitor.

Clinical Use

Analgesic for moderate pain

Drug interactions

Potentially hazardous interactions with other drugs
Antidepressants: avoid MAOIs; tricyclics possibly increased risk of side effects.

Metabolism

Extensively metabolised in the liver to produce active metabolites. It is mainly excreted in the urine. About 8% of a dose is excreted via the faeces.

27688-56-8
79-04-9
23327-57-3
Synthesis of Nefopam hydrochloride from Benzenemethanol, 2-[(methylamino)methyl]-α-phenyl-, hydrochloride (1:1) and Chloroacetyl chloride

Nefopam hydrochloride Preparation Products And Raw materials

Global( 219)Suppliers
Supplier Tel Email Country ProdList Advantage
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Fuxin Pharmaceutical
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View Lastest Price from Nefopam hydrochloride manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
Nefopam(Hydrochloride) pictures 2024-03-29 Nefopam(Hydrochloride)
23327-57-3
US $0.00 / mg 10mg 0.98 10g ShenZhen H&D Pharmaceutical Technology Co., LTD
Nefopan Hydrochloride pictures 2024-03-22 Nefopan Hydrochloride
23327-57-3
US $10.00-5.00 / kg 1kg 99% 20000tons Liaoning Pharmaceutical Innovation Co., Ltd
Nefopam hydrochloride pictures 2024-03-16 Nefopam hydrochloride
23327-57-3
US $0.00 / KG 100g 98%+ 100kg WUHAN CIRCLE POWDER TECHNOLOGY CO.,LTD

Nefopam hydrochloride Spectrum

BENZOXAZOCINE HYDROCHLORIDE LABOTEST-BB LT00159839 3,4,5,6-TETRAHYDRO-5-METHYL-1H-2,5-BENZOXAZOCINE HYDROCHLORIDE 3,4,5,6-TETRAHYDRO-5-METHYL-1-PHENYL-1H-2,5-BENZOXAZOCINE HYDROCHLORIDE NEFOPAM HYDROCHLORIDE 1H-2,5-Benzoxazocine, 3,4,5,6-tetrahydro-5-methyl-1-phenyl-, hydrochloride NAFOPAN HCL ACUPAN 3-methyl-7-phenyl-6-oxa-3-azabicyclo[6.4.0]dodeca-8,10,12-triene hydrochloride 5-Methyl-1-phenyl-3,4,5,6-tetrahydro-1H-benzo[f][1,4]oxazocine hydrochloride 1H-2,5-Benzoxazocine,3,4,5,6-tetrahydro-5-Methyl-1-phenyl-, hydrochloride (1:1) 5-Methyl-1-phenyl-1,3,4,6-tetrahydro-5H-benz[f]-2,5-oxazocine hydrochloride 5-benzoxazocine,5-methyl-1-phenyl-3,4,5,6-tetrahydro-1h-hydrochloride 5-methyl-1-phenyl-3,4,5,6-tetrahydro-1h-2,5-benzoxazocinehydrochloride ajan fenazoxinehydrochloride r738 Nefopam HydrochlorideQ: What is Nefopam Hydrochloride Q: What is the CAS Number of Nefopam Hydrochloride Q: What is the storage condition of Nefopam Hydrochloride Q: What are the applications of Nefopam Hydrochloride Nefopam D4 HydrochlorideQ: What is Nefopam D4 Hydrochloride Q: What is the CAS Number of Nefopam D4 Hydrochloride Q: What is the storage condition of Nefopam D4 Hydrochloride Q: What are the applications of Nefopam D4 Hydrochloride Nefopam HCl (Fenazoxine) Nefopam hydrochloride Impurities Nefopam hydrochloride USP/EP/BP (2S)-2-[(8S,9S,10R,13S,14S,17R)-10,13-dimethyl-3-oxo-6,7,8,9,11,12,14,15,16,17-decahydrocyclopenta[a]phenanthren-17-yl]propanoic acid NEFOPAM HCL 23327-57-3 C17H19NOHCl C17H20NOCL C17H19NOClH Other APIs Aromatics Heterocycles Intermediates & Fine Chemicals Pharmaceuticals API raw material