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MedKoo Cat#: 558506 | Name: Chromotrope 2B
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Description:

WARNING: This product is for research use only, not for human or veterinary use.

Chromotrope 2B is a reagent for boric acid and borates.

Chemical Structure

Chromotrope 2B
Chromotrope 2B
CAS#548-80-1

Theoretical Analysis

MedKoo Cat#: 558506

Name: Chromotrope 2B

CAS#: 548-80-1

Chemical Formula: C16H9N3Na2O10S2

Exact Mass: 512.9500

Molecular Weight: 513.36

Elemental Analysis: C, 37.44; H, 1.77; N, 8.19; Na, 8.96; O, 31.17; S, 12.49

Price and Availability

Size Price Availability Quantity
10g USD 250.00 2 Weeks
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Related CAS #
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Synonym
Chromotrope 2B; Chromotrope-2B; Chromotrope2B; Chromotrope Red 4B; C.I. Acid Red 176; Naphtocard Fast Red 3B
IUPAC/Chemical Name
2,7-Naphthalenedisulfonic acid, 4,5-dihydroxy-3-((4-nitrophenyl)azo)-, disodium salt
InChi Key
AXUUHWJXDWBCSG-QIKYXUGXSA-L
InChi Code
InChI=1S/C16H11N3O10S2.2Na/c20-12-7-11(30(24,25)26)5-8-6-13(31(27,28)29)15(16(21)14(8)12)18-17-9-1-3-10(4-2-9)19(22)23;;/h1-7,20-21H,(H,24,25,26)(H,27,28,29);;/q;2*+1/p-2/b18-17+;;
SMILES Code
O=S(C1=C(/N=N/C2=CC=C([N+]([O-])=O)C=C2)C(O)=C3C(O)=CC(S(=O)([O-])=O)=CC3=C1)([O-])=O.[Na+].[Na+]
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
>3 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
2934.99.03.00
More Info

Preparing Stock Solutions

The following data is based on the product molecular weight 513.36 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
1: Li X, Xu G. Simultaneous determination of ranitidine and metronidazole in pharmaceutical formulations at poly(chromotrope 2B) modified activated glassy carbon electrodes. J Food Drug Anal. 2014 Sep;22(3):345-349. doi: 10.1016/j.jfda.2013.09.050. Epub 2013 Dec 8. PubMed PMID: 28911424. 2: Mohammed H, Endeshaw T, Kebede A, Defera M. Comparison of Chromotrope 2R and Uvitex 2B for the detection of intestinal microsporidial spores in stool specimens of HIV patients attending Nekempte Hospital, West Ethiopia. Ethiop Med J. 2009 Jul;47(3):233-7. PubMed PMID: 19954127. 3: Cha SK, Kasem KK, Abruña HD. Effects of competitive binding on the amperometric determination of copper with electrodes modified with chromotrope 2B. Talanta. 1991 Jan;38(1):89-93. PubMed PMID: 18965109. 4: MARTIN G. [Study of the specificity of the method for the colorimetric micro determination of boron by chromotrope 2B in the presence of acetic anhydride]. Bull Soc Chim Biol (Paris). 1954;36(4-5):719-29. French. PubMed PMID: 13199553. 5: Issa YM, El-Hawary WF, Youssef AF, Senosy AR. Spectrophotometric determination of sildenafil citrate in pure form and in pharmaceutical formulation using some chromotropic acid azo dyes. Spectrochim Acta A Mol Biomol Spectrosc. 2010 Apr;75(4):1297-303. doi: 10.1016/j.saa.2009.12.068. Epub 2010 Jan 6. PubMed PMID: 20129817. 6: Taketo Y, Taketo A. Effects of trypan blue and related compounds on production and activity of streptolysin S. Z Naturforsch C. 1982 May-Jun;37(5-6):385-9. PubMed PMID: 7051595. 7: Moura H, Sodre FC, Bornay-Llinares FJ, Leitch GJ, Navin T, Wahlquist S, Bryan R, Meseguer I, Visvesvara GS. Detection by an immunofluorescence test of Encephalitozoon intestinalis spores in routinely formalin-fixed stool samples stored at room temperature. J Clin Microbiol. 1999 Jul;37(7):2317-22. PubMed PMID: 10364604; PubMed Central PMCID: PMC85146. 8: Abdel-Ghani NT, Shoukry AF, Issa YM, Wahdan OA. Spectrophotometric determination of meclozine HCl and papaverine HCl in their pharmaceutical formulations. J Pharm Biomed Anal. 2002 Apr 15;28(2):373-8. PubMed PMID: 11929681. 9: Fernández P, Conde CP, Gutiérrez A, Cámara C. On-line aluminium preconcentration on chelating resin and its FIA-spectrofluorimetric determination in foods and dialysis concentrates. Talanta. 1991 Dec;38(12):1387-92. PubMed PMID: 18965313. 10: Accoceberry I, Thellier M, Desportes-Livage I, Achbarou A, Biligui S, Danis M, Datry A. Production of monoclonal antibodies directed against the microsporidium Enterocytozoon bieneusi. J Clin Microbiol. 1999 Dec;37(12):4107-12. PubMed PMID: 10565939; PubMed Central PMCID: PMC85891. 11: Ombrouck C, Ciceron L, Biligui S, Brown S, Marechal P, van Gool T, Datry A, Danis M, Desportes-Livage I. Specific PCR assay for direct detection of intestinal microsporidia Enterocytozoon bieneusi and Encephalitozoon intestinalis in fecal specimens from human immunodeficiency virus-infected patients. J Clin Microbiol. 1997 Mar;35(3):652-5. PubMed PMID: 9041406; PubMed Central PMCID: PMC229644. 12: Amin AS, El-Sheikh R, Zahran F, Gouda AA. Spectrophotometric determination of pipazethate HCl, dextromethorphan HBr and drotaverine HCl in their pharmaceutical preparations. Spectrochim Acta A Mol Biomol Spectrosc. 2007 Jul;67(3-4):1088-93. Epub 2006 Sep 28. PubMed PMID: 17092767. 13: Huang JS, Liu HT, Lin KC. Laser-induced breakdown spectroscopy in analysis of Al3+ liquid droplets: on-line preconcentration by use of flow-injection manifold. Anal Chim Acta. 2007 Jan 9;581(2):303-8. Epub 2006 Aug 26. PubMed PMID: 17386457.