33936 Fluka

Hydroxynaphthol blue

indicator for metal titration

Synonym: 1-(2-Hydroxy-4-sulfo-1-naphthylazo)-2-naphthol-3,6-disulfonic acid trisodium salt, 3-Hydroxy-4-(2-hydroxy-4-sulfo-1-naphthylazo)naphthalene-2,7-disulfonic acid trisodium salt



Related Categories Analytical Reagents, Analytical/Chromatography, Indicators, Metal Titration Indicators, Titration More...
grade   indicator for metal titration
suitability   complies for suitability for complexometry


General description

Visit our Titration Center to learn more.

Price and Availability

Suggested Laboratory Gloves

Laboratory GlovesThis substance has been tested against several types of hand protection for CE compliance. Click below to find the recommended gloves for handling this product.

Explore the New Analytical Standards Portal

Customers Also Viewed

Calcium carbonate

ACS reagent, chelometric standard, 99.95-100.05% dry basis

Calconcarboxylic acid

for complexometry


indicator grade

Eriochrome<SUP>®</SUP> Black T

ACS reagent (indicator grade)

Safety & Documentation

Safety Information

GHS07  GHS07
Signal word 
Hazard statements 
Precautionary statements 
Personal Protective Equipment 
WGK Germany 


Certificate of Analysis

Protocols & Articles
Peer-Reviewed Papers


Set your institution to view full text papers.

Development and application of loop-mediated isothermal amplification for detection of the F167Y mutation of carbendazim-resistant isolates in Fusarium graminearum. Duan Y, Zhang X, Ge C, et al. Sci. Rep. 4, 7094, (2014)


Development of phage immuno-loop-mediated isothermal amplification assays for organophosphorus pesticides in agro-products. Hua X, Yin W, Shi H, et al. Anal. Chem. 86(16), 8441-7, (2014)


Development and evaluation of a novel and rapid detection assay for Botrytis cinerea based on loop-mediated isothermal amplification. Duan YB, Ge CY, Zhang XK, et al. PLoS ONE 9(10), e111094, (2014)


Colorimetric detection of loop-mediated isothermal amplification reaction by using hydroxy naphthol blue. Goto M, Honda E, Ogura A, et al. Biotechniques 46(3), 167-72, (2009)


Rapid detection of Pseudomonas aeruginosa in mouse feces by colorimetric loop-mediated isothermal amplification. Goto M, Shimada K, Sato A, et al. J. Microbiol. Methods 81(3), 247-52, (2010)


[Colorimetric detection of human influenza A H1N1 virus by reverse transcription loop mediated isothermal amplification]. Nie K, Wang DY, Qin M, et al. Bing Du Xue Bao 26(2), 81-7, (2010)


Development of a loop-mediated isothermal amplification assay for rapid detection of capripoxviruses. Das A, Babiuk S, and McIntosh MT J. Clin. Microbiol. 50(5), 1613-20, (2012)


Rapid detection of Opisthorchis viverrini copro-DNA using loop-mediated isothermal amplification (LAMP). Arimatsu Y, Kaewkes S, Laha T, et al. Parasitol. Int. 61(1), 178-82, (2012)


Visual detection of pandemic influenza A H1N1 Virus 2009 by reverse-transcription loop-mediated isothermal amplification with hydroxynaphthol blue dye. Ma XJ, Shu YL, Nie K, et al. J. Virol. Methods 167(2), 214-7, (2010)


Visual detection of high-risk human papillomavirus genotypes 16, 18, 45, 52, and 58 by loop-mediated isothermal amplification with hydroxynaphthol blue dye. Luo L, Nie K, Yang MJ, et al. J. Clin. Microbiol. 49(10), 3545-50, (2011)


Visual detection of turkey coronavirus RNA in tissues and feces by reverse-transcription loop-mediated isothermal amplification (RT-LAMP) with hydroxynaphthol blue dye. Cardoso TC, Ferrari HF, Bregano LC, et al. Mol. Cell Probes 24(6), 415-7, (2010)


Visual detection of human enterovirus 71 subgenotype C4 and Coxsackievirus A16 by reverse transcription loop-mediated isothermal amplification with the hydroxynaphthol blue dye. Nie K, Zhang Y, Luo L, et al. J. Virol. Methods 175(2), 283-6, (2011)


Visual detection of the human metapneumovirus using reverse transcription loop-mediated isothermal amplification with hydroxynaphthol blue dye. Wang X, Zhang Q, Zhang F, et al. Virol. J. 9, 138, (2012)


Related Products

Technical Service:

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Bulk Ordering & Pricing:

Need larger quantities for your development, manufacturing or research applications?