When mixed as a 0.1% alcoholic solution, methyl red has a red color below pH 4.4 and yellow above pH 6.2. The visible spectra pertaining to two acid-base equilibria (equilibria designated by Ka^ and Kdy, in Fig. Methyl acetate, also known as MeOAc, acetic acid methyl ester or methyl ethanoate, is a carboxylate ester with the formula CH 3 COOCH 3.It is a flammable liquid with a characteristically pleasant smell reminiscent of some glues and nail polish removers. Near Me . Methyl red is a pH indicator; it is red in pH under 4.4, yellow in pH over 6.2, and orange in between, with a pKa of 5.1. It has been used for titrating ammonia and weak organic bases, but it is not suitable for titrating acids. 10303; UNII: 69083AX1ZX (free base) RFA0W63690 (HCl salt) 311GZ0QHWN (sodium salt) … Griess reaction (2) Feature. Molecular Formula. Concentration: 0.02% w/v Composition: Water 99.98%, Methyl Red, Sodium Salt 0.02% Boiling Point: 100°C Density: 1 Melting Point: 0.0°C Color: Orange to dark red liquid Physical State: Liquid pH Range: 4.2 (pink) – 6.2 (yellow) Solubility Information: Miscible Shelf Life: 24 Months … Size Price In Stock pH 4.4 - pH 6.0 Red - yellow. Because it changes color at the pK a of a mid strength acid, it is usually used in titration for acids. Methyl red hydrochloride; Methyl red hydrochloride Product Specs. Acid Red 2, is an indicator dye that turns red in acidic solutions. Transition range. Clinical Testing (1) Diagnostic Assay Manufacturing (4) Available for Sale. What is the IUPAC name for ch3-ch2-c(double bond o)-ch3? Account. Melting Point (°C) 101 - 200 (1) Color. Absorption maximum (buffer pH 4.5) 523 - 526 nm. It is gradually being replaced by sulfonphthalein indicators, such as bromcresol green, which are more stable and exhibit a sharper change in color. Identifiers CAS Number. C.I. Ph. Absorption maximum (buffer pH 6.2) 427 - 437 nm It is an azo dye, and is a dark red crystalline powder. 2-{[4-(Dimethylamino)phenyl]diazenyl}benzoic acid. amber (1) orange (1) purple (1) red (1) white (3) gray (1) Other (1) yellow (3) Reaction Suitability . Eur., acid-base indicator, CAS Number: 493-52-7,(32654 Fluka).Shop now or request a quote. Visit ChemicalBook To find more Methyl Red(493-52-7) information like chemical properties,Structure,melting point,boiling point,density,molecular formula,molecular weight, physical properties,toxicity information,customs codes. Flash Point (°C) 00 269.30 08/07/2020 C15 H15 N3 O2 493-52-7 (CH3)2NC6H4N=NC6H4CO2H 26444 A0421122 Methyl Red,pure,indicator synthetic Catalog Number Lot Number Description Country of Origin Declaration of Origin INDIA Quality Test / Release Date Suggested retest date 08/07/2025 08/07/2020 BSE/TSE Chemical Result name Specifications Test Value Appearance (Color) Dark red to brown to … At last,Methyl Red(493-52-7) … Currently, methyl red is rarely used because it is easily reduced to a colorless form. Search. Get Best Price. Red to red-violet powder, eventually with granular parts. Methyl red Names Preferred IUPAC name. Melting point: 179-182 °C, 452-455 K. Hazards; R-phrases: R20 R21 R22 R36 R37 R38 R40 (what is: /?) Acid Red 2, is an indicator dye that turns red in acidic solutions. Melting Point (°C) less than 0 (1) 0 - 100 (5) 101 - 200 (12) 201 - 300 (14) 701 - 800 (1) 801 - 900 (1) Color. Can anyone help me solve this chemistry problem? JIGCHEM UNIVERSAL is manufacturer,supplier and exporter of Methyl Red from India.We are offering best quality of Methyl Red at economical price. It is a pH indicator, turning red under pH 4.4, yellow over pH 6.2, and orange in between those values. CAS No: 67-56-1; Molecular Weight: 32.04; Molecular Formula:CH 4 O; Boiling Point:65.4 °C(lit.) Methyl Red, also called C.I. Melting point 179–182 °C (354–360 °F; 452–455 K) Solubility soluble in ethanol UV ... Ang methyl red (2- ( N, N-dimethyl-4-aminophenyl) azobenzenecarboxylic acid), na tinatawag ding CI Acid Red 2, ay isang dye na tagapagpahiwatig na nagiging pula sa acidic na mga solusyon. Methyl red is easily reduced, thereby losing its color, and readings should be made promptly. It is an azo dye, and is a dark red crystalline powder.. New (1) Application. 493-52-7: Density: 1.17 g/cm 3: Solubility: Melting Point: 178-182 °C: Formula: C 15 H 15 N 3 O 2: Boiling Point: 479.5 °C at 760 mmHg Molecular Weight: 269.33 Flash Point: 243.8 °C Transport Information: UN 1170 3/PG 2 Appearance Methyl red: EINECS: 207-776-1 CAS No. 2-[4-(dimethylamino)phenyl]diazenylbenzoic acid. C 15 H 15 N 3 O 2. Methyl Red Indicator Solution ACC# 45435 Section 1 - Chemical Product and Company Identification: MSDS Name: Methyl Red Indicator Solution Catalog Numbers: S71419, S71420 Synonyms: Methyl Red in Alcohol Company Identification: Fisher Scientific 1 Reagent Lane Fair Lawn, NJ 07410 For information, call: 201-796-7100 Emergency Number: 201-796-7100 For CHEMTREC assistance, call: 800-424-9300 … … 493-52-7 (free base) 63451-28-5 (HCl salt) 845-10-3 (sodium salt) 3D model . Unlike a universal indicator, methyl orange does not have a full spectrum of color change, but it has a sharp end point. The range includes Benzophenone, Melting Point +47 to +49 degrees celsius, to Anthraquinone, Melting Point +283 to +286 degrees celsius. 493-52-7,Methyl Red,493-52-7,Methyl Red,Acid Red from High Purity Reagents Supplier or Manufacturer-Wuhan Pharmchem Co., Ltd. Melting point (capillary method, temperatur measerment in the heating block) 179 - 182 °C. Properties Safety and Handling Reach Info MSDS NMR Spectrum Synthesis Route Precursor and Product Computational chemical data 401 Suppliers Methyl Red (50 products available) View by: Product | Supplier. Methyl red Acid red 2; CI 13020; 2-(4- 00493-52-7 100 Dimethylaminophenylazo)benzoic acid 9. All India; Mumbai; Alpha Chemika Methyl Red PH Indicator Solution, 0.5 to 20 ml. Read about company. 493-52-7: C.I.No. Methyl red is a pH indicator; it is red in pH under 4.4, yellow in pH over 6.2, and orange in between.. 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