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1205-91-0 Usage

Chemical Properties

whitefinecrystallineflake

Check Digit Verification of cas no

The CAS Registry Mumber 1205-91-0 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,2,0 and 5 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1205-91:
(6*1)+(5*2)+(4*0)+(3*5)+(2*9)+(1*1)=50
50 % 10 = 0
So 1205-91-0 is a valid CAS Registry Number.
InChI:InChI=1/C10H10O4/c1-7(11)13-9-3-5-10(6-4-9)14-8(2)12/h3-6H,1-2H3

1205-91-0 Well-known Company Product Price

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  • Alfa Aesar

  • (B20987)  1,4-Diacetoxybenzene, 98%   

  • 1205-91-0

  • 25g

  • 180.0CNY

  • Detail
  • Alfa Aesar

  • (B20987)  1,4-Diacetoxybenzene, 98%   

  • 1205-91-0

  • 100g

  • 607.0CNY

  • Detail
  • Alfa Aesar

  • (B20987)  1,4-Diacetoxybenzene, 98%   

  • 1205-91-0

  • 250g

  • 1222.0CNY

  • Detail

1205-91-0SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 10, 2017

Revision Date: Aug 10, 2017

1.Identification

1.1 GHS Product identifier

Product name 1,4-Diacetoxybenzene

1.2 Other means of identification

Product number -
Other names Hydroquinone Diacetate

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:1205-91-0 SDS

1205-91-0Relevant articles and documents

DNA-binding study of nickel(II) and zinc(II) complexes with two novel chromenone-based Schiff-base ligands

Qin, Dong-Dong,Yang, Zheng-Yin,Li, Tian-Rong,Qi, Gao-Fei

, p. 525 - 535 (2009)

Two new chromenone-based Schiff-base ligands, 3-{[(1,5-dihydro-3-methyl-5- thioxo-4H-1,2,4-triazol-4-yl)imino]methyl}-6-hydroxy-4H-1-benzopyran-4-one (L1) and 2,2′-bis[(6-hydroxy-4-oxo-4H-1-benzopyran-3-yl) methylene]carbonothioic dihydrazide (L2), and their NiII and ZnII complexes were prepared. All the complexes were characterized by elemental analysis, IR data, and molar conductivity. The binding of these four complexes to calf-thymus DNA was carefully investigated by UV/VIS spectroscopy, fluorescence spectroscopy, viscosity measurements, and CD spectra. The experimental results indicate that the four complexes bind to calf-thymus DNA in an intercalative mode, with the intrinsic binding constants (K) of 3.94·104 ([NiL1]), 5.15·10 3 ([ZnL1]), 4.12·104 ([NiL 2]), and 3.75·104 m-1 ([ZnL 2]). These data show that the complexes of L2 can interact more strongly with DNA than complexes of L1, and the NiII complexes have a higher binding constant than ZnII complexes.

Nano-sized mesoporous phosphated tin oxide as an efficient solid acid catalyst

Hassan, S. M. Hassan,Mannaa,Ibrahim, Amr Awad

, p. 810 - 818 (2019)

Herein, we prepared a mesoporous tin oxide catalyst (mSnO2) activated with phosphate species by the adsorption of phosphate ions from a phosphoric acid solution onto tin oxyhydroxide (Sn(OH)4) surface. The phosphate content ranged from 3 to 45 wt%. The nonaqueous titration of n-butylamine in acetonitrile was used to determine the total surface acidity level. FTIR of chemically adsorbed pyridine was used to differentiate between the Lewis and Br?nsted acid sites. Thermal and X-ray diffraction analysis indicated that the addition of phosphate groups stabilized the mesostructure of mSnO2 and enabled it to keep its crystalline size at the nanoscale. FTIR analysis indicated the polymerization of the HPO42? groups into P2O74?, which in turn reacts with SnO2 to form a SnP2O7 layer, which stabilizes the mesoporous structure of SnO2. The acidity measurements showed that the phosphate species are distributed homogeneously over the mSnO2 surface until surface saturation coverage at 25 wt% PO43?, at which point the acid strength and surface acidity level are maximized. The catalytic activity was tested for the synthesis of hydroquinone diacetate, where it was found that the % yield of hydroquinone diacetate compound increased gradually with the increase in PO43? loading on mSnO2 until it reached a maximum value of 93.2% for the 25% PO43?/mSnO2 catalyst with 100% selectivity and excellent reusability for three consecutive runs with no loss in activity.

A new off-on fluorescent sensor for the detection of Al(III) based on a chromone-derived Schiff-base

Liu, Li-mei,Yang, Zheng-yin

, p. 588 - 592 (2018)

A new Al3+ sensor, 6-ethoxychromone-3-carbaldehyde-(3-hydroxy-2-naphthalene acyl) hydrazone (L), was designed and synthesized. The sensor L could exist steadily and detect Al3+ in the pH range from 5.0 to 8.0 in ethanol and water (3:1, v/v). This sensor showed good selectivity and high sensitivity towards Al3+ in the presence of most metal ions, and a remarkable enhancement in fluorescence emission intensity at 508 nm (λex = 420 nm) was observed with addition of 1equiv Al3+, which was attributed to the inhibition of photoinduced electron-transfer (PET) phenomenon and C[dbnd]N isomerization process. With the fluorescence titration experiments and the ESI-MS spectrum data, we reached the conclusion that the binding ratio between L and Al3+ was 2:1. Besides, the binding constant (Ka) between L and Al3+ was calculated to be 9.24 × 103 M?1 and the detection limit of L for Al3+ was as low as 1.82 × 10?7 M.

Na 2 CO 3-Catalyzed O-Acylation of Phenols for the Synthesis of Aryl Carboxylates with Use of Alkenyl Carboxylates

Zhou, Xiao-Yu,Chen, Xia

, p. 2321 - 2325 (2018)

Inorganic base-catalyzed O-acylation of phenol and its derivatives has been developed. The procedure provides an efficient catalysis system for the preparation of aryl carboxylates with alkenyl carboxylates as acyl reagents. The reaction proceeded smoothly by using ?-Na 2 CO 3 as the catalyst in MeCN to produce the corresponding aryl carboxylates in good to excellent yields.

Microwave-assisted acetylation of phenols without catalyst under solvent free condition

Zhang, Yu-Quan,Li, Yan-Chun,Zhu, Ji-Hua,Li, Zhi-Feng,Guo, Guo-Zhe,Chen, Dong-Ping

, p. 7746 - 7748 (2014)

Etherification between phenols with acetic anhydride was tested under different conditions. Phenols were efficiently acylated with acetic anhydride to give phenol acetate derivatives in good high yields without catalyst and solventless conditions under microwave irradiation.

Synthesis, characterization, cytotoxic activity and DNA binding Ni(II) complex with the 6-hydroxy chromone-3-carbaldehyde thiosemicarbazone

Wang, Bao-dui,Yang, Zheng-Yin,Lü, Ming-hua,Hai, Jun,Wang, Qin,Chen, Zhong-Ning

, p. 4069 - 4075 (2009)

A new ligand L, 6-hydroxy chromone-3-carbaldehyde thiosemicarbazone, and its Ni(II) complex have been synthesized and characterized. The crystal structure of Ni(II) complex was determined by single crystal X-ray diffraction. Ni(II) complex and ligand L were subjected to biological tests in vitro using THP-1, Raji and Hela cancer cell lines. Compared with the ligand, Ni(II) complex showed significant cytotoxic activity against these three cancer cell lines. The interactions of Ni(II) complex and ligand L with calf thymus DNA were then investigated by spectrometric titration, ethidium bromide displacement experiments and viscosity measurements methods. The experimental results indicated that Ni(II) complex bound to DNA by intercalative mode via the ligand L. The intrinsic binding constants of Ni(II) complex and ligand L with DNA were (1.10 ± 0.65) × 106 M-1 and (1.48 ± 0.57) × 105 M-1, respectively.

Arbutin synthase, a novel member of the NRD1β glycosyltransferase family, is a unique multifunctional enzyme converting various natural products and xenobiotics

Hefner, Tobias,Arend, Joachim,Warzecha, Heribert,Siems, Karsten,St?ckigt, Joachim

, p. 1731 - 1741 (2002)

Plant glucosyltransferases (GTs) play a crucial role in natural product biosynthesis and metabolization of xenobiotics. We expressed the arbutin synthase (AS) cDNA from Rauvolfia serpentina cell suspension cultures in Escherichia coli with a 6xHis tag and purified the active enzyme to homogeneity. The recombinant enzyme had a temperature optimum of 50°C and showed two different pH optima (4.5 and 6.8 or 7.5, depending on the buffer). Out of 74 natural and synthetic phenols and two cinnamyl alcohols tested as substrates for the AS, 45 were accepted, covering a broad range of structural features. Converting rates comparable to hydroquinone were not achieved. In contrast to this broad acceptor substrate specificity, only pyrimidine nucleotide activated glucose was tolerated as a donor substrate. Nucleotide and amino acid sequence analysis revealed AS to be a new member of the NRD1β family of glycosyl transferases and placed the enzyme into the group of plant secondary product GTs. Arbutin synthase is therefore the first example of a broad spectrum multifunctional glucosyltransferase.

An efficient method to prepare aryl acetates by the carbonylation of aryl methyl ethers or phenols

Zhang, Dejin,Yang, Guoqiang,Xiong, Junping,Liu, Jia,Hu, Xingbang,Zhang, Zhibing

, p. 2683 - 2687 (2021/02/16)

Synthesis of valuable chemicals from lignin based compounds is critical for the application of biomass. Here, we develop a method of preparing aryl acetates by the carbonylation of aryl methyl ethers or phenols under low CO pressure. Good to excellent yields of aryl acetates were obtained using different substrates, and a possible reaction mechanism was proposed by conducting a series of control experiments. This method may provide a potential way for the utilization of lignin.

A chromone derivative as a colorimetric and “ON-OFF-ON” fluorescent probe for highly sensitive and selective detection of Cu2+ and S2?

Liu, Cong,Tian, Limei,Liu, Kui,Xue, Jia,Fan, Long,Li, Tianrong,Yang, Zheng-yin

, (2021/02/21)

A chromone derivative (L) which could be utilized for reversibly detecting Cu2+ and S2? by means of fluorescence quenching and displacement in aqueous solution was designed and developed. Upon the addition of Cu2+, the strong blue-green fluorescence emission of L was quenched rapidly and then recovered in 1 min by successively adding S2?. Furthermore, with the alternate addition of Cu2+ and S2?, the reversible cycles could be repeated for at least four times, which meant that L could be identified as a renewable dual-functioning probe. What's more, due to its excellent sensing performances, this probe L could also be used to detect Cu2+ and S2? with test strips conveniently.

Production device of liquid crystal polymer precursor acetylated monomer

-

Paragraph 0102-0107, (2021/03/24)

The utility model provides a production device of a liquid crystal polymer precursor acetylated monomer, which comprises a raw material dissolving tank, a micro-mixer, a micro-channel reactor and a receiving system which are sequentially communicated through pipelines along the material flow direction. By adopting the microchannel reactor, the heat exchange capability of the reactor in the reaction process is enhanced, the defect of large temperature fluctuation of the phenolic hydroxyl-containing aromatic compound in the acetylation reaction process by adopting the traditional method is overcome, the high selectivity of the reaction is realized by accurately controlling the temperature, the generation of by-products is reduced, and the production cost is reduced. The purity of the monomeris improved, a high-purity polymerized monomer is provided for the subsequent melt polycondensation reaction, and the performance of the liquid crystal polymer prepared by the polycondensation reaction is greatly improved.

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