Powered by X-Lab. This chemical's molecular formula is C 17 H 13 NO 2 and molecular weight is 263.29. It belongs to the product categories of Intermediates of Dyes and Pigments; Organics. The Sudan dyes are popular dyes noted for being soluble in organic solvents. 5, 425–436 (1973), Histological Laboratory, University of Amsterdam, Amsterdam, The Netherlands, You can also search for this author in The Naphthol AS, with the CAS registry number 92-77-3, is also known as 3-Hydroxy-2-naphthanilide. The simplest, and smallest, ... (yellow color) 2. [4], Naphthols (both 1 and 2 isomers) are used as biomarkers for livestock and humans exposed to polycyclic aromatic hydrocarbons. It is an isomer of 1-naphthol, differing by the location of the hydroxyl group on the naphthalene ring. CAS Number: 846-70-8. The general protein stain Naphthol Yellow S has been studied with a model system of polyacrylamide films containing proteins to test the stoichiometry of the salt formation and the influence of some histochemical conditions. 92-78-4: Density: 1.399 g/cm 3: Solubility: Melting Point: 255 °C: Formula: C 17 H 12 ClNO 2: Boiling Point: 416.5 °C at 760 mmHg Molecular Weight: 297.74 Flash Point: 205.7 °C Transport Information: Appearance: Safety: Risk Codes: Molecular Structure Ogata et al. The general protein stain Naphthol Yellow S has been studied with a model system of polyacrylamide films containing proteins to test the stoichiometry of the salt formation and the influence of some histochemical conditions. It is an isomer of 2-naphthol differing by the location of the hydroxyl group on the naphthalene ring. In measuring isolated rat liver cells stained with Naphthol Yellow S (NYS) at optimal conditions of pH (2.8), the absorbances measured at the absorption peak of 430 nm appeared to be far too high locally to enable accurate cytophotometric measurements. The naphthols are naphthalene homologues of phenol, with the hydroxyl group being more reactive than in the phenols.Both isomers are soluble in simple alcohols, ethers, and chloroform. The average CIECAM J,a,b values for naphthol scarlet (PR188) are: 48, 81, 45, with chroma of 92 (estimated hue purity of 77) and a … Histochemie 7, 288–290 (1966), Meek, E. S.: The cytochemical estimation of protein using Naphthol Yellow S, and combined measurement of deoxyribonucleic acid. Molecular Formula C10H4N2Na2O8S Molecular Weight 358.19 g/mol 2 Na Boiling Point Structure, properties, spectra, suppliers and links for: 1-Naphthol, 90-15-3, 1321-67-1. / European Journal of Chemistry 8 (1) (2017) 20‐24 21 Figure 1. S 36 - Wear … Racemic forms of 1,1′-bi-(2-naphthol) (BINOL) monopivalate (rac-1) and its 6-nitro substitute (rac-2) were structurally characterized by X-ray crystallography.Molecules of opposite chirality form dimers in the crystalline state of rac-1 through O H⋯O hydrogen-bonds between the free hydroxy and the pivalate carbonyl group. S 24/25 - Avoid contact with skin and eyes. Lab. Naphthalene is an organic compound with formula C 10 H 8.It is the simplest polycyclic aromatic hydrocarbon, and is a white crystalline solid with a characteristic odor that is detectable at concentrations as low as 0.08 ppm by mass. Naphthol, either of two colourless, crystalline organic compounds derived from naphthalene and belonging to the phenol family; each has the molecular formula C 1 0 H 7 OH. Naphthol AS-E: EINECS: 202-189-7 CAS No. Acid Yellow 1; Food Yellow 1; Sodium flavianate; Flavianic acid, sodium salt; C.I. According to bhe chemical structure and concentra- tion of the sugar present, a red to blue-violet color will be produced throughout, the whole mixture. : 201 … Disodium 5,7-dinitro-8-oxidonaphthalene-2-sulfonate. Histochem. Antonyms for naphthol. Naphthyl group definition, the univalent group C10H7–, having a replaceable hydrogen atom in the first, or alpha, position; 1-naphthyl group. Chromatogr., 586, 1991, 85-112.) Empirical Formula (Hill Notation) C 10 H 4 N 2 Na 2 O 8 S . The colored solutions fade on long standing and acquire a yellow- 1. Polyoxyethylene alkyl naphthol AN series,Find details about Polyoxyethylene alkyl naphthol AN series from Jiangxi Simo Biological Chemical Industrial Co.Ltd (FACTORY) The molecular structure of 7‐methoxy‐1‐{[(E)‐2,6‐dimethylphenylimino](phenyl)methyl}‐2‐naphthol with atom‐labelling scheme.Displacement ellipsoids drawn at the 50% probability level for non‐H atoms. At last,4-CHLORO-1-NAPHTHOL… OSHA Vacated PELs: 1-Naphthol: No OSHA Vacated PELs are listed for this chemical. Synonym: 2,4-Dinitro-1-naphthol-7-sulfonic acid sodium salt, 5,7-Dinitro-8-hydroxy-2-naphthalenesulfonic acid sodium salt, Acid Yellow 1, Flavianic acid sodium salt … Excellent lightfastness ratings. The naphthols are naphthalene homologues of phenol, but more reactive. Naphthol Yellow S. Synonyms. Other names. This file contains additional information, probably added from the digital camera or scanner used to create or digitize it. EC / List no. CAS Number: 605-69-6 Toxicity data (The meaning of any toxicologi Melting Point: Formula: C10H6 N2 O8 S . In search of new antimicrobial and cytotoxic agents, a series of new naphthol diazenyl scaffold based Schiff bases (NS1–NS23) was efficiently synthesized by condensation of 2-hydroxy naphthaldehyde azo dyes with various substituted aromatic/heteroaromatic/aliphatic amines. This range of 98 vibrant colors includes several uniquely Australian shades. Predicted data is generated using the US Environmental Protection Agency’s EPISuite™. S 26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. Deitch, A. D.: Microspectrophotometric study of the binding of the anionic dye, Naphthol Yellow S, by tissue sections and by purified proteins. In view of the application of this highly specific stain in histochemistry and histology, optimal conditions for dye binding as worked out on the basis of the model experiments were controlled cytophotometrically and compared with the original method. Stable. Naphthol Yellow RS - chemical information, properties, structures, articles, patents and more chemical data. Colour Index Number 10316 . Naphthol Yellow S: EINECS: 212-690-2 CAS No. © 2021 Springer Nature Switzerland AG. The structure of compound 2d was determined by X-ray crystallography. Invest. It's a beautiful, deep scarlet verging on a light red, the same hue as most cadmium scarlet watercolors (PR188 is an excellent cadmium alternative if price or toxicity is a concern). The structure for PR112 (for artists, one of the most important naphthol AS pigments) is typical: two carbon rings linked by nitrogen to a central structure of two overlapping carbon rings. See more. The Theory What is Organic Chemistry? Naphthol yellow S. Naphthol yellow S: translation. A sample of 2-naphthol aniline dye. Solvent Yellow 14 for 103 weeks. Ungraded products supplied by Spectrum are indicative of a grade suitable for general industrial use or research purposes and typicall 10, 564–567 (1962), Romeis, B.: Mikroskopische Technik. Sudan black B/Naphthol yellow S. As for 4 above, but the PAS routine was replaced by staining in naphthol yellow S, 0.02% in 1% acetic acid for 5 min. Empirical Formula (Hill Notation): C 10 H 4 N 2 Na 2 O 8 S. Molecular Weight: Naphthol Green B (NGB) is a complexometric indicator with three SO 3 − groups and a naphthalene structure, leading to excellent water solubility and good stability.In this assay, it is the first time that NGB was proposed as a highly-sensitive probe for the determination of CTS. IN: Wied, G. L., Bahr, G. F. The resulting staining scheme was again tried out on a series of histological objects with or without combination with other stains, notably the Feulgen and gallocyanin technique. Note: You can find out much more about indicators in the physical chemistry part of this site. It is a derivative of 1-naphthol. 2-Naphthol, or β-naphthol, is a fluorescent colorless (or occasionally yellow) crystalline solid with the formula C 10 H 7 OH. At one time it was a popular food colorant but it was delisted in 1959 in the U.S. References I, p. 327. As an aromatic hydrocarbon, naphthalene's structure consists of a fused pair of benzene rings. 2-Naphthol, or β-naphthol, is a fluorescent colorless (or occasionally yellow) crystalline solid with the formula C10H7OH. Molecular Weight 358.19 . Several of the Sudan dyes are derived from 2-naphthol by coupling with diazonium salts. volume 40, pages231–240(1974)Cite this article. Medical dictionary. [5], InChI=1S/C10H8O/c11-10-6-5-8-3-1-2-4-9(8)7-10/h1-7,11H, InChI=1/C10H8O/c11-10-6-5-8-3-1-2-4-9(8)7-10/h1-7,11H, Except where otherwise noted, data are given for materials in their, Ullmann's Encyclopedia of Industrial Chemistry, https://en.wikipedia.org/w/index.php?title=2-Naphthol&oldid=980219108, Chemical articles with multiple compound IDs, Multiple chemicals in an infobox that need indexing, Pages using collapsible list with both background and text-align in titlestyle, Articles containing unverified chemical infoboxes, Creative Commons Attribution-ShareAlike License, 121 to 123 °C (250 to 253 °F; 394 to 396 K), This page was last edited on 25 September 2020, at 08:09. Naphthol Yellow - chemical information, properties, structures, articles, patents and more chemical data. Visit ChemicalBook To find more 2-Naphthol(135-19-3) information like chemical properties,Structure,melting point,boiling point,density,molecular formula,molecular weight, physical properties,toxicity information,customs codes. naphthol yellow Manchester y. To prepare the azo dye 1-(4-hydroxyphenylazo)-2-naphthol by the diazonium coupling reaction of naphthalen-2-ol with the benzenediazonium ion obtained from 4-aminophenol: Background Dyes play an indispensable role in human history since ancient time. 2-Naphthol reacts to form BINOL, a C2-symmetric ligand popularized for use in asymmetric catalysis. Log Octanol-Water Partition Coef (SRC): Log Kow (KOWWIN v1.67 estimate) = 5.51 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42): Boiling Pt (deg C): 406.39 (Adapted Stein & Brown method) Melting Pt (deg C): 144.40 (Mean or Weighted MP) VP(mm Hg,25 deg C): 9.56E-008 (Modified Grain … J. 2-Naphthol can also be produced by a method analogous to the cumene process.[2]. [3] Sudan dyes I -IV and Sudan Red G consist of arylazo-substituted naphthols. basic structure, differing only in the structure of the R-group or the side chain. More help available here. PubMed Google Scholar, Tas, J., Oud, P. & James, J. Solvent Yellow 14 to groups of 50 F344 rats of either sex for 103 weeks. 6. J. The colored solutions fade on long standing and acquire a yellow- Both compounds have long been identified with the manufacture of dyes and dye intermediates; they also have important uses in other areas of the chemical industry.. Visit ChemicalBook To find more 4-CHLORO-1-NAPHTHOL(604-44-4) information like chemical properties,Structure,melting point,boiling point,density,molecular formula,molecular weight, physical properties,toxicity information,customs codes. Manchester yellow; Philadelphia yellow; Look at other dictionaries: Naphthol yellow S — Naphthol yellow S[1] IUPAC name Disodium … Wikipedia. 2, p. 223. Histochemistry Use Naphthol yellow s for fast, easy, and consistent DNA/RNA Purification, Antibody/Protein Purification, Cell Isolation. Incompatible with strong oxidizing agents. Dyeing processes are often considered as an important characteristic of a particular A carcinogenesis bioassay of C.I. The mixture is warmed, preferably in a water bath, to about 80”. Apply them with a brush or palette knife to create striking textured effects. It includes the Color Index names, chemical composition, light fastness ratings and heath and safty information for pigments and paints. Structure-retention index relationship on polar columns, J. C.I. https://doi.org/10.1007/BF00501958, Over 10 million scientific documents at your fingertips, Not logged in New York: Academic Press 1966, Duijn, P. van, Ploeg, M. van der: Potentialities of cellulose and polyacrylamide films as vehicles in quantitative cytochemical investigations on model substances. Histochemistry. 4, 324–351 (1955), Deitch, A. D.: Cytophotometry of nucleic acids. Naphthol Yellow S | C10H4N2Na2O8S | CID 2724063 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity information, supplier lists, and more. Cytochem. Its EINECS number is 202-188-1. Matisse Structure Acrylics have a rich, heavy body texture that's especially suited to impasto techniques. solvent Yellow 14 (94.1% pure), a widely used monoazo dye, was conducted by feeding diets containing 250 or 500 ppm of C.I. This is a preview of subscription content, access via your institution. Traditionally, 2-naphthol is produced by a two-step process that begins with the sulfonation of naphthalene in sulfuric acid:[2]. Naphthol Yellow S.FQ - chemical information, properties, structures, articles, patents and more chemical data. Both isomers are soluble in simple alcohols, ethers, and chloroform. 13016. According to bhe chemical structure and concentra- tion of the sugar present, a red to blue-violet color will be produced throughout, the whole mixture. 1974;40(3):231-40. You can also browse global suppliers,vendor,prices,Price,manufacturers of 4-CHLORO-1-NAPHTHOL(604-44-4). The experimental results have showed that both CTS and NGB produce very weak RRS signals. - 198.245.60.135. Histochemie 17, 121–127 (1969), Tas, J., Roozemond, R. C.: Direct recording of metachromatic spectra in a model system of polyacrylamide films. Synonyms for naphthol in Free Thesaurus. Search Find response information for thousands of hazardous materials, including fire and explosion hazards, health hazards, firefighting techniques, cleanup … Organic chemistry is a branch of chemistry that deals with the study of the structure, properties, reactions and preparation of organic compounds. In between, at some point there will be equal amounts of the red and yellow forms and so methyl orange looks orange. Naphthol Yellow structure: You cannot overwrite this file. Naphthol Yellow S Synonyms: 2,4-Dinitro-1-naphthol-7-sulfonic Acid Disodium Salt Disodium 2,4-Dinitro-1-naphthol-7-sulfonate Disodium 8-Hydroxy-5,7-dinitro-2-naphthalenesulfonate 8-Hydroxy-5,7-dinitro-2-naphthalenesulfonic Acid Disodium Salt Flavianic Acid Disodium Salt In: Wied, G. L., (ed. File usage. Synonym: 2,4- Dinitro- 1- naphthol- 7- sulfonic acid sodium salt, 5,7- Dinitro- 8- hydroxy- 2- naphthalenesulfonic acid sodium salt, Acid Yellow 1, Flavianic acid sodium salt. Similar groups of 50 B6C3F1 mice received diets containing 500 or 1,000 ppm of C.I. Structure, properties, spectra, suppliers and links for: Martius yellow, 605-69-6. It is a white solid. Toxicology. 2011. It is an isomer of 1-naphthol, differing by the location of the hydroxyl group on the naphthalene ring. 2,4-Dinitro-1-naphthol-7-sulfonic acid sodium salt, 5,7-Dinitro-8-hydroxy-2-naphthalenesulfonic acid sodium salt, Acid Yellow 1, Flavianic acid sodium salt Molecular Information. 2-Naphthol is a widely used intermediate for the production of dyes and other compounds. Naphthol yellow S [1] IUPAC name. Stability. Naphthol yellow S is an organic compound that is a dye. NIST Spectra nist ri: Predicted data is generated using the ACD/Labs Percepta Platform - PhysChem Module. As carbon and hydrogen are the essential constituents of all organic compounds, they are known as hydrocarbons. Concept ID: 406900008 Read Codes: ICD-10 Codes: Not in scope. The sulfonic acid group is then cleaved in molten sodium hydroxide: Neutralization of the product with acid gives 2-naphthol. Naphthol Lake Yellow FY - chemical information, properties, structures, articles, patents and more chemical data. This tool allows you to search SNOMED CT and is designed for educational use only. the Color of Art Pigment Database: Pigment Red, is a complete artist's reference on red pigments used in making paint. - Naphthol yellow S stain method (procedure) - Naphthol yellow S stain method - Naphthol yellow S stain Hide descriptions. 406900008 Read Codes: ICD-10 Codes: Not in scope includes the Color of Art Pigment Database: Red... For the production of dyes and pigments ; Organics concept ID: 406900008 Read Codes: ICD-10 Codes: Codes... Note: you can also be produced by a method analogous to intended! 2D was determined by X-ray crystallography links for: 1-Naphthol: No osha Vacated PELs: 1-Naphthol 2-naphthol. And seek medical advice 4-CHLORO-1-NAPHTHOL ( 604-44-4 ) Flavianic acid sodium salt, acid Yellow 1 Food. Compound that is a dye composition, light fastness ratings and heath safty. 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