(R)-Citalopram oxalate
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    WARNING: This product is for research use only, not for human or veterinary use.

Hodoodo CAT#: H561703

CAS#: 219861-53-7

Description: (R)-Citalopram oxalate is a less active enantiomer of Escitalopram Oxalate, a potent and selective inhibitor of serotonin reuptake.


Chemical Structure

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(R)-Citalopram oxalate
CAS# 219861-53-7

Theoretical Analysis

Hodoodo Cat#: H561703
Name: (R)-Citalopram oxalate
CAS#: 219861-53-7
Chemical Formula: C22H23FN2O5
Exact Mass: 0.00
Molecular Weight: 414.430
Elemental Analysis: C, 63.76; H, 5.59; F, 4.58; N, 6.76; O, 19.30

Price and Availability

Size Price Availability Quantity
5mg USD 250 2 Weeks
10mg USD 400 2 Weeks
25mg USD 750 2 Weeks
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Synonym: (R)-Citalopram oxalate;

IUPAC/Chemical Name: (R)-1-(3-(dimethylamino)propyl)-1-(4-fluorophenyl)-1,3-dihydroisobenzofuran-5-carbonitrile oxalate

InChi Key: KTGRHKOEFSJQNS-VEIFNGETSA-N

InChi Code: InChI=1S/C20H21FN2O.C2H2O4/c1-23(2)11-3-10-20(17-5-7-18(21)8-6-17)19-9-4-15(13-22)12-16(19)14-24-20;3-1(4)2(5)6/h4-9,12H,3,10-11,14H2,1-2H3;(H,3,4)(H,5,6)/t20-;/m1./s1

SMILES Code: N#CC1=CC2=C([C@](C3=CC=C(F)C=C3)(CCCN(C)C)OC2)C=C1.O=C(O)C(O)=O

Appearance: Solid powder

Purity: >98% (or refer to the Certificate of Analysis)

Shipping Condition: Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.

Storage Condition: Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).

Solubility: Soluble in DMSO

Shelf Life: >2 years if stored properly

Drug Formulation: This drug may be formulated in DMSO

Stock Solution Storage: 0 - 4 C for short term (days to weeks), or -20 C for long term (months).

HS Tariff Code: 2934.99.9001

More Info:

Biological target:
In vitro activity:
In vivo activity:

Preparing Stock Solutions

The following data is based on the product molecular weight 414.43 Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.

Recalculate based on batch purity %
Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
1 mM 1.15 mL 5.76 mL 11.51 mL
5 mM 0.23 mL 1.15 mL 2.3 mL
10 mM 0.12 mL 0.58 mL 1.15 mL
50 mM 0.02 mL 0.12 mL 0.23 mL
Formulation protocol:
In vitro protocol:
In vivo protocol:

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1: Kirino E. Escitalopram for the management of major depressive disorder: a review of its efficacy, safety, and patient acceptability. Patient Prefer Adherence. 2012;6:853-61. doi: 10.2147/PPA.S22495. Epub 2012 Dec 4. PubMed PMID: 23271894; PubMed Central PMCID: PMC3526882.

2: Alarfaj NA, Aly FA, Al-Qahtany AA. Flow-injection chemiluminescence and electrogenerated chemiluminescence determination of escitalopram oxalate in tablet form. Luminescence. 2013 Jan-Feb;28(1):84-92. doi: 10.1002/bio.2372. Epub 2012 May 4. PubMed PMID: 22555899.

3: de Diego HL, Bond AD, Dancer RJ. Formation of solid solutions between racemic and enantiomeric citalopram oxalate. Chirality. 2011 May;23(5):408-16. doi: 10.1002/chir.20943. Epub 2011 Apr 6. PubMed PMID: 21472783.

4: Li J, Tian Y, Zhang ZJ, Wang N, Ren X, Chen Y. Pharmacokinetics and bioequivalence study of escitalopram oxalate formulations after single-dose administration in healthy Chinese male volunteers. Arzneimittelforschung. 2009;59(5):228-32. doi: 10.1055/s-0031-1296389. PubMed PMID: 19537522.

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6: Pullar IA, Boot JR, Broadmore RJ, Eyre TA, Cooper J, Sanger GJ, Wedley S, Mitchell SN. The role of the 5-HT1D receptor as a presynaptic autoreceptor in the guinea pig. Eur J Pharmacol. 2004 Jun 16;493(1-3):85-93. PubMed PMID: 15189767.

7: Burke WJ. Escitalopram. Expert Opin Investig Drugs. 2002 Oct;11(10):1477-86. Review. PubMed PMID: 12387707.