Synonyms: Zinc Undecenoate or Zinc Undecylenate CAS Number: 557-08-4, Molecular Weight: 431.92, Chemical Formula: C22H38O4Zn, EINECS EC Number: 209-155-0, FEMA: ----, Zinc Undecenoate BP Ph Eur Grade Specifications Ph Eur C22H38O4Zn -- 431.9 -- CAS 557-08-4 DEFINITION Zinc di(undec-10-enoate). Content: 98.0 per cent to 102.0 per cent (dried substance). CHARACTERS Appearance: White or almost white, fine powder. Solubility: Practically insoluble in water and in ethanol (96 per cent). mp: 116C to 121C, it may leave a slight solid residue. IDENTIFICATION A. To 2.5 g add 10 ml of water and 10 ml of dilute sulphuric acid. Shake with 2 quantities, each of 10 ml, of ether. Reserve the aqueous layer for identification test C. Wash the combined ether layers with water and evaporate to dryness. To the residue add 2 ml of freshly distilled aniline and boil under a reflux condenser for 10 min. Allow to cool and add 30 ml of ether. Shake with 3 quantities, each of 20 ml, of dilute hydrochloric acid and then with 20 ml of water. Evaporate the organic layer to dryness on a water-bath. The residue, after recrystallisation twice from ethanol (70 per cent V/V) R and drying in vacuo for 3 h, melts at 66C to 68C. B. Dissolve 0.1 g in a mixture of 2 ml of dilute sulphuric acid and 5 ml of glacial acetic acid. Add drop-wise 0.25 ml of potassium permanganate solution. The colour of the potassium permanganate solution is discharged. C. A mixture of 1 ml of the aqueous layer obtained in identification test A and 4 ml of water gives the reaction of zinc. TESTS Alkalinity: Mix 1.0 g with 5 ml of ethanol (96 per cent) and 0.5 ml of phenol red solution. Add 50 ml of carbon dioxide-free water and examine immediately. No reddish colour appears. Alkali and alkaline-earth metals: Maximum 2.0 per cent. To 1.0 g add 25 ml of water and 5 ml of hydrochloric acid and heat to boiling. Filter whilst hot. Wash the filter and the residue with 25 ml of hot water. Combine the filtrate and washings and add concentrated ammonia until alkaline. Add 7.5 ml of thioacetamide solution and heat on a water-bath for 30 min. Filter and wash the precipitate with 2 quantities, each of 10 ml, of water. Combine the filtrate and washings, evaporate to dryness on a water-bath and ignite. The residue weighs a maximum of 20 mg. Sulphates: Maximum 500 ppm. Loss on drying: Maximum 1.5 per cent, determined on 0.500 g by drying in an oven at 105C. Degree of un-saturation: Dissolve 0.100 g in a mixture of 5 ml of dilute hydrochloric acid R and 30 ml of glacial acetic acid. Using 0.05 ml indigo carmine solution, added towards the end of the titration as indicator. Titrate with 0.0167 M bromide-bromate until the colour changes from blue to yellow. 9.1 ml to 9.4 ml of 0.0167 M bromide-bromate is required. Carry out a blank titration. Zinc Undecylenate USP Grade Specifications C22H38O4Zn -- 431.92 10-Undecenoic acid, zinc(2+) salt. Zinc 10-undecenoate [CAS 557-08-4]. Zinc Undecylenate contains not less than 98.0 percent and not more than 102.0 percent of C22H38O4Zn, calculated on the dried basis. About the Company GST Registration Date: 2023 Legal Status of Firm: Limited Company Number of Employees: 51 To 100 People Annual Turnover: 25 - 100 Cr company-description: Anmol Chemicals is a manufacturer supplier exporter of Pharmaceutical Excipients, Food Grade Chemicals and it offers materials as per IP BP EP Ph Eur USP NF JP FCC Food Grade as per the the latest monograph at best prices. Anmol Chemicals Group, established in 1976, is the pioneer manufacturer of Specialty Chemicals, Pharmaceutical Excipients, Some API, Food Chemicals in India. Anmol Chemicals Group has manufacturing facilities spread across Western India, representatives in Houston, Chicago USA and Dubai, UAE. We also have toll manufacturing units for processing chemicals in a few countries around the world. We make IP, BP, EP, USP, NF, Ph. Eur., JP, FCC or Food Grade, Analytical Reagent Grade, LR or Laboratory Reagent Grades and Pure Grades of various chemicals. All our items are analyzed to meet the required standards. We can supply the product in grams for your laboratory trial and in tons for your plant scale jobs. We manufacture Bulk Drugs / API, Excipients, Pharmaceuticals (IP BP USP NF Ph Eur EP JP), Specialty Chemicals (Pure/Reagent), Mineral Fortifiers (FCC). Our manufacturing facility is FDA approved and GLP, cGMP, ISO9001, ISO14001, ISO/IEC 17025, ISO22000, FSSC 22000, ISO45001, FSSAI, Kosher, HALAL, COPP, WHO-GMP certified and Written Confirmation (WC) is available. Solid materials can be customized for particle size, shape, and bulk density. We observe WHO Good Manufacturing Practices and Good Laboratory Practices. We are a government-recognized STAR Export House and "Authorised Economic Operator (AEO)" per Indian Customs.
