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Acetoin, also known as 3-hydroxybutanone or acetyl methyl carbinol, is an organic compound with the formula CH 3 CH(OH)C(O)CH 3. It is a colorless liquid with a pleasant, buttery odor. It is chiral. The form produced by bacteria is (R)-acetoin. [1]
Bangladesh Trade and Tariff Commission (BTC) [1] autonomous national statutory body that is responsible for placing tariffs on imports, protection of domestic industry, and the prevention of dumping of foreign goods in Bangladesh and is located in Dhaka, Bangladesh. [2] [3] Chairman of the Bangladesh Trade and Tariff Commission is Mahfuza Akter.
Pharmaceutical companies are expanding their business with the aim to expand the export market. [2] In the period between July and February in the fiscal year 2024 to 2025, pharmaceutical export was $134.15 million, a 13% increase compared to the same period last year. [3] There are 5 types of medicine manufacturing companies in Bangladesh.
2 –H (2-butenoic) or HO(O=)C – CH 2 – CH=CH –H (3-butenoic). All have the chemical formula C 3 H 5 COOH or C 4 H 6 O 2. These compounds are technically mono-unsaturated fatty acids, although some authors may exclude them for being too short. The three isomers are: crotonic acid (trans-2-butenoic or (2E)-but-2-enoic acid)
The structure of the acetoxy group blue. In organic chemistry, the acetoxy group (abbr. AcO or OAc; IUPAC name: acetyloxy [1]), is a functional group with the formula −OCOCH 3 and the structure −O−C(=O)−CH 3. As the -oxy suffix implies, it differs from the acetyl group (−C(=O)−CH 3) by the presence of an additional oxygen atom.
Bangladesh Petroleum Corporation [1] Eastern Refinery Limited , or ERL , is a state-owned oil refinery in Bangladesh . ERL, a subsidiary of Bangladesh Petroleum Corporation , supplies around 40% of the country's current petroleum products demand and thus maintains stability in the petroleum, oil, and lubricants (POL) products market of the country.
cf 3 c(o)ch 2 co 2 h → cf 3 c(o)ch 3 + co 2 It is a weak acid (like most alkyl carboxylic acids), with a p K a of 3.58. Acetoacetic acid displays keto-enol tautomerisation , with the enol form being partially stabilised by extended conjugation and intramolecular H-bonding .
3-Methyl-2-butanone (methyl isopropyl ketone, MIPK) is a ketone and solvent of minor importance. It is comparable to MEK ( Methyl ethyl ketone ), but has a lower solvency and is more expensive. [ 2 ]