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acetyl oxide
Notes:
Esterification agent for use in prepn. of modified food starch and for acetylation of monoglycerides
Acetic anhydride is a versatile reagent for acetylations, the introduction of acetyl groups to organic substrates. In these conversions, acetic anhydride is viewed as a source of CH3CO+. Alcohols and amines are readily acetylated. For example, the reaction of acetic anhydride with ethanol is:; Acetic anhydride is an irritant and flammable. Because of its reactivity toward water, alcohol foam or carbon dioxide are preferred for fire suppression. The vapour of acetic anhydride is harmful.; Acetic anhydride is the chemical compound with the formula (CH3CO)2O. Commonly abbreviated Ac2O, it is one of the simplest acid anhydrides and is a widely used reagent in organic synthesis. It is a colorless liquid that smells strongly of acetic acid, which is formed by its reaction with the moisture in the air.; As indicated by its organic chemistry, Ac2O is mainly used for acetylations leading to commercially significant materials. Its largest application is for the conversion of cellulose to cellulose acetate, which is a component of photographic film and other coated materials. Similarly it is used in the production of aspirin, acetyl salicylic acid, which is prepared by the acetylation of salicylic acid. It is also used as a wood preservative via autoclave impregnation to make a longer lasting timber. Because of its use for the synthesis of heroin by the diacetylation of morphine, acetic anhydride (known as 'AA' in clandestine chemistry circles) is listed as a U.S. DEA List II Precursor, and restricted in many other countries. The largest markets for diverted acetic anhydride continue to be heroin laboratories in Afghanistan.
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Augustus Oils Ltd The Premier Supplier Augustus Oils Ltd, in harmony with nature - to present it at its best... A wealth of experience, expertise and knowledge has allowed Augustus to bridge the gulf in expectation and trust between growers and users of natural ingredients. The Company works in partnership with customers on the one hand, and growers, farmers and distillers on the other. Both users and producers can then focus on exactly what they do best, while skilled Augustus technicians closely monitor and control the delivered product. This ensures users can have the confidence that they will receive the best raw materials suited to their requirements. Email: Enquiries Email: Sales Email: web site enquiries Voice: +44 (0)1420 590555 Fax: +44 (0)1420 592420 Services Product(s): Acetic Anhydride
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ECSA Chemicals Human Chemistry ECSA Chemicals has been active since 1913 in the trading and international commerce of raw materials. With an organisation divided into industrial segments managed by specialists, it has become one of the largest distributors worldwide. ECSA Chemicals is the largest Swiss-owned company in terms of warehouses for the distribution of chemical products. We have been distributing chemical products for over 100 years and we have a special interest in protecting the environment and in the safety of our facilities and collaborators. Established in 1913 as a small grocery store, in its over 100 years of activity ECSA Chemicals has become one of the most important Swiss-owned distributors of chemical products. The company, which is active in international distribution and trading, is organised into industrial segments that are managed by teams of specialists and experts. They guarantee professional and customised consultancy and services. With our experience, we can rapidly and safely connect you with the best suppliers on the market, providing you with a complete search, consulting and assistance service. The focus of our approach and operations is you, our customers. We strive every day to find the best products that satisfy your needs as quickly as possible. Your satisfaction is our greatest success. WHY CHOOSE ECSA? EXPERIENCE We have been working for 100 years. QUALITY We have obtained many certifications (ISO, SQAS, GDP, Responsible Care, Bio-Inspecta, RSPO, etc.). We guarantee full compliance with the current laws and continuous training for our staff. SAFETY We constantly carry out risk analyses for each infrastructure, defining safety levels and implementing corrective measures promptly wherever they are needed. WIDESPREAD DISTRIBUTION We have warehouses in strategic locations to supply goods to Switzerland and to the rest of the world. STORAGE CAPACITY The 3 ECSA-owned warehouses guarantee considerable storage area and capacity in each warehouse, with full availability of products (base chemicals and speciality chemicals). SPEED Presence all over the country, staff dedicated to sourcing raw materials and considerable storage capacity guarantee that goods are rapidly obtained and supplied. CONSULTANCY Our specialists - in-depth knowledge of the market and products allows us to provide full consulting services, from the purchase to the supply of raw materials. Email: Info Email: Sales Email: Trading Email: Maintenance Email: Energy Voice: +41 91 695 88 00 Fax: +41 91 695 88 01 Linkedin Youtube RSS Feed ECSA Trade ECSA TRADE THE MOST UPDATED FINANCIAL PUBLICATION ON THE WORLD OF CHEMISTRY Products List: View Product(s): RE-421491 ACETIC ANHYDRIDE RPE-ACS-FOR ANALYSIS-REAG.
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Penta International Corporation Chemistry innovation At Penta, our products and services help businesses do business better. For over 30 years, Penta Manufacturing Company has played a growing role in worldwide chemistry innovations and applications. As an industry leader, Penta continues to pioneer chemistry-based solutions for practically every area of commerce. Our products and expertise have helped fuel technical advances in dozens of commercial applications including flavoring, coloring, fragrances and chemical processes. US Email: Technical Services US Email: Sales US Voice: (973) 740-2300 US Fax: (973) 740-1839 Product(s): 01-04800 ACETIC ANHYDRIDE 01-04805 ACETIC ANHYDRIDE ACS REAGENT GRADE
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TCI AMERICA Moving Your Chemistry Forward We continuously strive to advance our technology. With East & West Coast distribution centers, count on TCI to deliver products quickly and reliably. Over 30,000 Reagents available today in benchtop to bulk quantities. We also offer custom synthesis solutions. Sign up for a TCI account today for fast and free shipping! Tokyo Chemical Industry Co., Ltd. (TCI) is a leading worldwide manufacturer of specialty organic chemicals founded in 1946. TCI provides organic laboratory chemicals as well as pharmaceutical, cosmetic and functional materials. More than 70 years of synthesis experience and multi-purpose plants enable TCI to offer more than 30,000 products as well as custom synthesis. US Email: Sales Email: Technical Support Voice: 1-800-423-8616 Fax: 1- 888-520-1075 Facebook Twitter Instagram Linkedin Product(s): A1668 Acetic Anhydride (ca. 1mol/L in Dichloromethane)
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| CAS Number: | 108-24-7 |  3D/inchi
|
| ECHA EINECS - REACH Pre-Reg: | 203-564-8 | |
| FDA UNII: | 2E48G1QI9Q | |
| Nikkaji Web: | J2.417A | |
| Beilstein Number: | 0385737 | |
| MDL: | MFCD00008705 | |
| XlogP3-AA: | -0.10 (est) | |
| Molecular Weight: | 102.08942000 | |
| Formula: | C4 H6 O3 | |
| BioActivity Summary: | listing | |
| NMR Predictor: | Predict (works with chrome or firefox) | |
Category: food starch-modified
US / EU / FDA / JECFA / FEMA / FLAVIS / Scholar / Patent Information:
| Google Scholar: | Search |
| Google Books: | Search |
| Google Scholar: with word "volatile" | Search |
| Google Scholar: with word "flavor" | Search |
| Google Scholar: with word "odor" | Search |
| Perfumer and Flavorist: | Search |
| Google Patents: | Search |
| US Patents: | Search |
| EU Patents: | Search |
| Pubchem Patents: | Search |
| PubMed: | Search |
| NCBI: | Search |
| DG SANTE Food Contact Materials: | acetic anhydride |
| FDA Mainterm (SATF): | 108-24-7 ; ACETIC ANHYDRIDE |
| FDA Regulation: | |
| FDA PART 172 -- FOOD ADDITIVES PERMITTED FOR DIRECT ADDITION TO FOOD FOR HUMAN CONSUMPTION Subpart I--Multipurpose Additives Sec. 172.892 Food starch-modified. | |
Physical Properties:
| Appearance: | colorless clear liquid (est) |
| Assay: | 98.00 to 100.00 % |
| Food Chemicals Codex Listed: | No |
| Melting Point: | -73.00 °C. @ 760.00 mm Hg |
| Boiling Point: | 137.00 to 140.00 °C. @ 760.00 mm Hg |
| Boiling Point: | 66.00 to 67.00 °C. @ 50.00 mm Hg |
| Vapor Pressure: | 5.100000 mmHg @ 25.00 °C. |
| Vapor Density: | 3.5 ( Air = 1 ) |
| Flash Point: | 120.00 °F. TCC ( 48.89 °C. ) |
| logP (o/w): | -0.480 |
| Shelf Life: | 6.00 month(s) or longer if stored properly. |
| Storage: | store in cool, dry place in tightly sealed containers, protected from heat and light. |
| moisture Sensitive. | |
| Soluble in: | |
| water, 120000 mg/L @ 20 °C (exp) | |
Organoleptic Properties:
| Odor Type: acidic | |
| Odor Description: at 1.00 % in dipropylene glycol. | sharp vinegar |
| Odor and/or flavor descriptions from others (if found). | |
Cosmetic Information:
| None found |
Suppliers:
| Augustus Oils |
| Acetic Anhydride |
| Services |
| Eastman Chemical |
| Acetic Anhydride, Kosher
99.5 wt % min. Odor: characteristic Use: Acetic anhydride ((CH3CO)2O) is manufactured by Eastman as a kosher product that may be used in foods as a reactant only. All kosher products produced by Eastman are manufactured under rabbinical supervision in full accordance with Jewish dietary laws. |
| ECSA Chemicals |
| ACETIC ANHYDRIDE RPE-ACS-FOR ANALYSIS-REAG. |
| ECSA TRADE THE MOST UPDATED FINANCIAL PUBLICATION ON THE WORLD OF CHEMISTRY |
| EMD Millipore |
| For experimental / research use only. |
| Acetic Anhydride |
| Penta International |
| ACETIC ANHYDRIDE ACS REAGENT GRADE |
| Penta International |
| ACETIC ANHYDRIDE |
| Sigma-Aldrich |
| For experimental / research use only. |
| Acetic Anhydride 99.5% |
| TCI AMERICA |
| For experimental / research use only. |
| Acetic Anhydride (ca. 1mol/L in Dichloromethane) |
| Universal Preserv-A-Chem Inc. |
| ACETIC ANHYDRIDE
Odor: characteristic Use: Acetic anhydride is used as an intermediate to produce a variety of acylated products. Its major use is in the manufacture of cellulose acetates; other uses include the manufacture of analgesics (aspirin, acetaminophen), triacetin and a variety of other products. |
| WEN International |
| ACETIC ANHYDRIDE Natural |
Safety Information:
| European information : | |
| Most important hazard(s): | |
| C - Corrosive. | |
|
R 10 - Flammable. R 20/22 - Harmful by inhalation and if swallowed. R 34 - Causes burns. S 02 - Keep out of the reach of children. S 20/21 - When using do not eat, drink or smoke. S 23 - Do not breath vapour. S 26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S 36/37/39 - Wear suitable clothing, gloves and eye/face protection. S 45 - In case of accident or if you feel unwell seek medical advice immediately. | |
| Hazards identification | |
| Classification of the substance or mixture | |
| GHS Classification in accordance with 29 CFR 1910 (OSHA HCS) | |
| None found. | |
| GHS Label elements, including precautionary statements | |
| Pictogram | |
| Hazard statement(s) | |
| None found. | |
| Precautionary statement(s) | |
| None found. | |
| Oral/Parenteral Toxicity: | |
|
oral-rat LD50 1780 mg/kg AMA Archives of Industrial Hygiene and Occupational Medicine. Vol. 4, Pg. 119, 1951. | |
| Dermal Toxicity: | |
|
skin-rabbit LD50 4.0 ml/kg Union Carbide Data Sheet. Vol. 8/7/1963 | |
| Inhalation Toxicity: | |
|
inhalation-rat LC50 1000 ppm/4H "Toxicology of Drugs and Chemicals," Deichmann, W.B., New York, Academic Press, Inc., 1969Vol. -, Pg. 607, 1969. | |
Safety in Use Information:
| Category: | food starch-modified | ||
| Recommendation for acetic anhydride usage levels up to: | |||
| not for fragrance use. | |||
| Recommendation for acetic anhydride flavor usage levels up to: | |||
| not for flavor use. | |||
Safety References:
| EPI System: | View |
| NIOSH International Chemical Safety Cards: | search |
| NIOSH Pocket Guide: | search |
| Chemical Carcinogenesis Research Information System: | Search |
| AIDS Citations: | Search |
| Cancer Citations: | Search |
| Toxicology Citations: | Search |
| EPA Substance Registry Services (TSCA): | 108-24-7 |
| EPA ACToR: | Toxicology Data |
| EPA Substance Registry Services (SRS): | Registry |
| Laboratory Chemical Safety Summary : | 7918 |
| National Institute of Allergy and Infectious Diseases: | Data |
| WISER: | UN 1715 |
| WGK Germany: | 1 |
| acetyl acetate | |
| Chemidplus: | 0000108247 |
| EPA/NOAA CAMEO: | hazardous materials |
| RTECS: | 108-24-7 |
References:
| acetyl acetate | |
| NIST Chemistry WebBook: | Search Inchi |
| Canada Domestic Sub. List: | 108-24-7 |
| Pubchem (cid): | 7918 |
| Pubchem (sid): | 134972899 |
Other Information:
| (IUPAC): | Atomic Weights of the Elements 2011 (pdf) |
| Videos: | The Periodic Table of Videos |
| tgsc: | Atomic Weights use for this web site |
| (IUPAC): | Periodic Table of the Elements |
| FDA Substances Added to Food (formerly EAFUS): | View |
| FDA Indirect Additives used in Food Contact Substances: | View |
| CHEBI: | View |
| CHEMBL: | View |
| HMDB (The Human Metabolome Database): | HMDB31646 |
| FooDB: | FDB008300 |
| Export Tariff Code: | 2915.24.0000 |
| FDA Listing of Food Additive Status: | View |
| ChemSpider: | View |
| Wikipedia: | View |
| Formulations/Preparations: grades: cp, technnical (75, 85, 90-95%) usually assayed at 99% purity; technical grade-97% | |
Potential Blenders and core components note
| None Found | ||
Potential Uses:
| None Found |
Occurrence (nature, food, other): note
| not found in nature |
Synonyms:
| acetanhydride | |
| acetic acid acetyl ester | |
| acetic acid anhydride | |
| acetic acid, anhydride | |
| acetic anhydride (ca. 1mol/l in dichloromethane) | |
| acetic anhydride natural | |
| acetic oxide | |
| aceticanhydride | |
| acetyl acetate | |
| acetyl anhydride | |
| acetyl oxide | |
| anhydride acetique | |
| ethanoic anhydride | |
| ethanoyl ethanoate |