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An alternative synthesis starts with the ethyl ester of 4-hydroxybenzoic acid, which chlorinates at the positions flanking the phenolic center. Ester hydrolysis followed by decarboxylation affords 2,6-dichlorophenol.
CAS number C 10 H 16 N 2 O 8: Ethylenediaminetetraacetic acid (EDTA) 6381–92–6 C 12 H 22 O 11: sucrose: 57–50–1 C 18 H 29 O 3 S: sodium dodecyl benzenesulfonate: 2155–30–0 C 20 H 25 N 30: Lysergic acid diethylamide (LSD) 50–37–3 C 123 H 193 N 35 O 37: Common serum albumin (macromolecule) 9048–49–1 Ca(AlH 4) 2: calcium ...
3,4-Epoxycyclohexylmethyl-3',4'-epoxycyclohexane carboxylate (ECC) is a cycloaliphatic epoxy resin which is used in many industrial applications. It reacts by cationic polymerization using thermolatent photoinitiators to form crosslinked insoluble thermosets .
Until the late 1970s, TDCPP was used as a flame retardant in children’s pajamas in compliance with the U.S. Flammable Fabrics Act of 1953. This use was discontinued after children wearing fabrics treated with a very similar compound, tris(2,3-dibromopropyl) phosphate, were found to have mutagenic byproducts in their urine.
Screenshot of the CAS Common Chemistry database with information about caffeine ().. A CAS Registry Number [1] (also referred to as CAS RN [2] or informally CAS Number) is a unique identification number, assigned by the Chemical Abstracts Service (CAS) in the US to every chemical substance described in the open scientific literature, in order to index the substance in the CAS Registry.
1218942-37-0 C 21 H 20 O 6: curcumin: C 21 H 22 N 2 O 4: Picralinal: C 21 H 22 O 4: Taxamairin A: 110300-76-0 C 21 H 23 FN 2 O 4: Z-FA-FMK: C 21 H 24 FN 6 O 6 P Rovafovir etalafenamide: C 21 H 25 NO 4: Yuanhunine: 104387-15-7 C 21 H 26 O 4: Canniprene: C 21 H 27 N 5: D75-4590: C 21 H 30 O 2: progesterone: 57-83-0 C 21 H 30 O 2 ...
of vaporization, Δ vap H o: 34.68 kJ/mol at 121 °C Std entropy change of vaporization, Δ vap S o: 102.8 J/(mol·K) at 25 °C Solid properties Std enthalpy change of formation, Δ f H o solid? kJ/mol Standard molar entropy, S o solid? J/(mol K) Enthalpy of state transition, Δ trs H o: 0.820 kJ/mol (crystal II → crystal I) –148 °C to ...
The half-life of this substance in terms of volatilization in the river, lagoon and lake is 2.1 h, 25 h and 18 days, respectively. [20] [21] The amount of methyl chloride in the stratosphere is estimated to be 2 × 10 6 tonnes per year, representing 20–25% of the total amount of chlorine that is emitted to the stratosphere annually. [22] [23]