2918300090 other carboxylic acids with aldehyde or ketone function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:6.5%。General tariff:30.0%
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Phase-transfer alkylation reactions using microreactors.
Chem. Commun. (Camb.) (8) , 936-7, (2003)
Phase-transfer alkylation in a microreactor proceeds smoothly, and the reaction has been found to be more efficient than that in a round-bottomed flask with vigorous stirring; we have observed by an o...
Cobalt (II) Schiff's base complex catalysed oxidation of alcohols with dioxygen in the presence of ethyl 2-oxocyclopentanecarboxylate. Punniyamurthy T and Iqbal J.
Tetrahedron Lett. 35(23) , 4007-10, (1994)
An improved synthesis and resolution of (±)-< i> cis, cis</i>-spiro [4.4] nonane-1, 6-diol. Nieman JA, et al.
Tetrahedron Asymmetry 4(9) , 1973-76, (1993)
Synonyms
2-Carbethoxy-1-cyclopentanone
Cyclopentanecarboxylic acid, 2-oxo-, ethyl ester
ethyl 2-oxocyclopentane-1-carboxylate
2-Carbethoxycyclopentanone
Ethyl 2-oxo-1-cyclopentanecarboxylate
MFCD00001412
EINECS 210-253-0
Ethyl 2-oxocyclopentanecarboxylate
Ethy-2-oxocyclopentanecarboxylate
2. Packaging of materials
For powders: normal is 25kgs/Drum or bag, or larger/smaller package as request.
For liquids: normal 25kgs/drum, 180-300kgs/bucket, or IBC, determined by the nature of the product.
Or smaller package 1kg/bottle, 10kgs/bottle as request.
Henan Fengda Chemical Co., Ltd. a research customization and supplier specializing in PPb grade ultra-high purity electronic chemicals, deeply rooted in the semiconductor and new display fields, committed to providing the most core and purest chemical components for photoresist and high-end display materials.
We provide key monomers for KrF/ArF photoresist, photoacid generators (PAGs), photoacids, and etching solution raw materials, providing cornerstone materials for advanced process photoresist formulations;
We take ICP-MS full spectrum metal impurity analysis as the quality cornerstone and provide ICP-MS metal impurity COA reports to meet the strict industry requirements for PPb grade electronic chemical materials. The COA report contains important data such as NA, Mg, K, Ca, Al, Cr, Fe, Ni, Cu, Zn, Pb, Ag, etc. To provide customers with pure and reliable source assurance for cutting-edge research and stable production.