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Proscaline (hydrochloride)

(Synonyms: 4-propoxy-3,5-Dimethoxyphenethylamine, 4-propoxy-3,5-DMPEA) 目录号 : GC44702

An Analytical Reference Standard

Proscaline (hydrochloride) Chemical Structure

Cas No.:61367-69-9

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产品描述

Proscaline (hydrochloride) is an analytical reference standard categorized as a phenethylamine. This product is intended for research and forensic applications.

Chemical Properties

Cas No. 61367-69-9 SDF
别名 4-propoxy-3,5-Dimethoxyphenethylamine, 4-propoxy-3,5-DMPEA
Canonical SMILES COC1=C(OCCC)C(OC)=CC(CCN)=C1.Cl
分子式 C13H21NO3•HCl 分子量 275.8
溶解度 DMF: 0.5 mg/ml,DMSO: 3 mg/ml,Ethanol: 10 mg/ml,PBS (pH 7.2): 3 mg/ml 储存条件 Store at -20°C
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Research Update

Pharmacological and toxicological aspects of combination of beta-lactam and aminoglycoside antibiotic, prednisolone and procaine hydrochloride on the example of Vetramycin

Pol J Vet Sci 2003;6(4):279-96.PMID:14703874doi

Vetramycin is an injectable veterinary compound for animal use only. In veterinary medicine, it has been used for a long time as a bactericidal beta-lactam and aminglycoside antibiotics combination, extending the bactericidal spectrum of these substances. This compound, in addition to bactericidal procaine penicillin and dihydrostreptomycin (DHS), contains also prednisolone acetate and procaine hydrochloride, two biologically active substances. Prednisolone, a glucocorticoide, has an antiinflammatory, antiallergic, antiitchical and analgesic effect. Procaine hydrochloride, in turn, has a local anaesthetic effect and attenuates pain caused by irritable properties of antibiotics at the injection sites. The average dosage of, respectively, procaine benzylpenicillin (I.U./kg(-1) b.w.), DHS (microg/kg(-1) b.w.), prednisolone acetate (microg/kg(-1) b.w.) and procaine hydrochloride (mg/kg(-1) b.w.) in horses, cattle, pigs is 6000-15000, 10-11, 0.24-0.6 and 1.2-3.0; s.i.d., in sheep, foals, calves, piglets is 20000-40000, 10, 0.8-1.6 and 4-8; s.i.d., in dogs and cats is 30000-200000, 10, 0.8-1.6 and 4-8; s.i.d.. Intramammary injection dose (Vetramycin antimastitis ointment in syringe) in cows is 1000000 I.U. of procaine benzylpenicillin + 1000000 I.U. of dihydrostreptycin sulphate per quarter of udder, s.i.d., during 3 successive days.

Effect of local anesthetic drug procaine hydrochloride on the conformational stability of bovine hemoglobin: Multi-spectroscopic and computational approaches

J Biomol Struct Dyn 2022;40(19):8938-8948.PMID:33970817DOI:10.1080/07391102.2021.1920465.

The interaction between bovine hemoglobin (BHb) and local anesthetic drug procaine hydrochloride (PCH) was examined by spectroscopic and computational studies. Intrinsic fluorescence analysis explored the ground-state complex formation in the binding of PCH with BHb through static quenching mechanism. The binding constants (Kb) are 29.38 × 103, 22.54 × 103 and 17.99 × 103 M-1 at 288, 298 and 308 K, respectively, and the ratio of BHb:PCH was 1:1 in the interaction mechanism of PCH and BHb. The acquired thermodynamic parameters (ΔH0, ΔG0 and ΔS0) demonstrated that interaction mechanism is spontaneous and enthalpy driven. The van der Waals forces and hydrogen bonding have been played a predominant role in the binding mechanism. The UV-vis spectroscopy validates the ground-state complexation between PCH and BHb and the binding constant (Kb) has been evaluated utilizing Benesi-Hildebrand equation. Fluorescence resonance energy transfer (FRET) results have demonstrated that the distance between donor (BHb) and acceptor (PCH) is very short (2.34 nm) suggesting a significant probability to energy transfer from BHb to PCH. Synchronous fluorescence results revealed that the alteration in the micro-environment of Tyrosine (Tyr) is more than tryptophan (Trp) residues suggesting that PCH molecule is close to Tyr residue. The secondary structure alterations were confirmed by CD, 3-D fluorescence and FT-IR spectroscopic measurements. Moreover, computational analyses further corroborated that PCH molecules are closer to Tyr residues as compared to Trp residues of BHb during the interaction process. The BHb-PCH complexes may contribute to a deeper understanding of the metabolism of drug, blood circulation process and may help to illustrate the relationship between functions and structure of BHb.Communicated by Ramaswamy H. Sarma.

Procaine hydrochloride fails to relieve pain in patients with acute pancreatitis

Digestion 2004;69(1):5-9.PMID:14755147DOI:10.1159/000076541.

Background: Several analgesics are in use for pain control in patients with acute pancreatitis. Procaine hydrochloride (procaine) has a long tradition and is recommended by the German Society of Gastroenterology and Metabolic Diseases for pain treatment in patients with acute pancreatitis. There is no controlled trial showing that procaine could be effective for pain treatment. Methods: In an open, randomized, controlled trial, 107 patients (76 male, 31 female; mean age 45 +/- 12 years) were included and randomized either to receive procaine (n = 55) or pentazocine (n = 52) for pain relief. Procaine 2 g/ 24 h was administered by continuous intravenous infusion, pentazocine 30 mg was administered every 6 h as a bolus intravenous injection. Pentazocine was additionally administered on demand whenever required in patients of both treatment groups and its total consumption was recorded. Pain scores were assessed twice daily on a visual analogue scale. Results: Patients receiving procaine were significantly more likely to request additional analgesics compared to patients treated with pentazocine alone, 98 vs. 44%, respectively (p < 0.001). Procaine did not reduce the amount of pentazocine required for pain control. The amount of pentazocine given in both groups was not statistically significantly different. Recorded pain scores were significantly lower (p < 0.001) in patients in the pentazocine group during the first 3 days of analgesic treatment. From day 4 on there was no significant difference in pain scores among the two groups. Conclusion: Thus, intravenous procaine treatment is not effective for pain control in patients with acute pancreatitis.

Procaine hydrochloride as a monoamine oxidase inhibitor: implications for Geriatric therapy

J Am Geriatr Soc 1977 Feb;25(2):90-3.PMID:833415DOI:10.1111/j.1532-5415.1977.tb00237.x.

The results of in vitro experiments showed that inhibition by procaine hydrochloride of monoamine oxidase (MAO) from either rat brain or liver was substrate-dependent. Procaine was more effective in inhibiting serotonin oxidation than phenylethylamine oxidation and had an intermediate effect on tryptamine oxidation. MAO activity in tissue homogenates from rats treated with procaine (150 mg/kg intraperitoneally) was inhibited most in liver, less in heart, and only very slightly brain for a duration of up to 8 hours. Procaine injected in that dose did not alter brain norepinephrine levels and elevated only slightly the brain serotonin levels. It did not protect against the degradation of exogenous radioactive tryptamine in brain. These data confirm and extend prior observations on in vitro inhibition of MAO by procaine and suggest that in high doses procaine may inhibit MAO weakly in vivo. If the reported usefulness of procaine preparations in treating geriatric patients indeed depends upon MAO inhibition, more effective inhibitors would seem to be available.

Colorimetric determination of procaine hydrochloride in pharmaceutical preparations

J Pharm Sci 1980 Mar;69(3):346-8.PMID:7381718DOI:10.1002/jps.2600690326.

A new rapid, specific, and convenient colorimetric method for the determination of procaine hydrochloride in pharmaceutical preparations is described. This method is based on measurement of the intensity of the orange-red color developed when procaine hydrochloride is allowed to react with 1,2-naphthoquinone-4-sulfonic acid sodium salt in aqueous solution. Beer's law is followed over 6.0--20.0 micrograms/ml. The method was applied to the determination of procaine hydrochloride in procaine hydrochloride, procaine hydrochloride injection with or without epinephrine, penicillin G procaine, penicillin G procaine injection, and fortified procaine penicillin injection (BP). The results were comparable to those obtained by official procedures. Because of its simplicity, sensitivity, and accuracy, this method is particularly suited for routine analysis of official preparations of procaine hydrochloride.