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    CAS 4803-74-1

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    CAS 4803-74-1
    Also known as: 4803-74-1, 5,6-dimethoxy-2-(pyridin-4-ylmethylene)-2,3-dihydro-1h-inden-1-one, (2e)-5,6-dimethoxy-2-(pyridin-4-ylmethylidene)-3h-inden-1-one, 5,6-dimethoxy-2-(4-pyridylmethylene)-1-indanone (donepezil impurity), 1h-inden-1-one,2,3-dihydro-5,6-dimethoxy-2-(4-pyridinylmethylene)-, 5,6-dimethoxy-2-(4-pyridylmethylene)-1-indanone
    Molecular Formula
    C17H15NO3
    Molecular Weight
    281.30  g/mol
    InChI Key
    SUVQWDLUAIFZKM-NTUHNPAUSA-N
    1 2D Structure

    CAS 4803-74-1

    2 Identification
    2.1 Computed Descriptors
    2.1.1 IUPAC Name
    (2E)-5,6-dimethoxy-2-(pyridin-4-ylmethylidene)-3H-inden-1-one
    2.1.2 InChI
    InChI=1S/C17H15NO3/c1-20-15-9-12-8-13(7-11-3-5-18-6-4-11)17(19)14(12)10-16(15)21-2/h3-7,9-10H,8H2,1-2H3/b13-7+
    2.1.3 InChI Key
    SUVQWDLUAIFZKM-NTUHNPAUSA-N
    2.1.4 Canonical SMILES
    COC1=C(C=C2C(=C1)CC(=CC3=CC=NC=C3)C2=O)OC
    2.1.5 Isomeric SMILES
    COC1=C(C=C2C(=C1)C/C(=C\C3=CC=NC=C3)/C2=O)OC
    2.2 Synonyms
    2.2.1 Depositor-Supplied Synonyms

    1. 4803-74-1

    2. 5,6-dimethoxy-2-(pyridin-4-ylmethylene)-2,3-dihydro-1h-inden-1-one

    3. (2e)-5,6-dimethoxy-2-(pyridin-4-ylmethylidene)-3h-inden-1-one

    4. 5,6-dimethoxy-2-(4-pyridylmethylene)-1-indanone (donepezil Impurity)

    5. 1h-inden-1-one,2,3-dihydro-5,6-dimethoxy-2-(4-pyridinylmethylene)-

    6. 5,6-dimethoxy-2-(4-pyridylmethylene)-1-indanone

    7. Mfcd08458868

    8. 5,6-dimethoxy-2-[(4-pyridyl)methylene]-1-indanone

    9. 5,6-dimethoxy-2-[(4-pyridyl)methylene]indan-1-one

    10. Dtxsid30468795

    11. Act04783

    12. Zinc22001732

    13. Akos015889314

    14. Ac-4723

    15. As-12616

    16. Cs-0150560

    17. P16891

    18. 803d741

    19. Q-100520

    20. 5,6-dimethoxy-2-(pyridine-4-yl)methylene-indan-1-o Ne

    21. (2e)-5,6-dimethoxy-2,3-dihydro-2-(4-pyridinylmethylene)-1h-indene-1-one

    22. (2e)-5,6-dimethoxy-2-[(pyridin-4-yl)methylidene]-2,3-dihydro-1h-inden-1-one

    23. (e)-5,6-dimethoxy-2-(pyridin-4-ylmethylidene)- 2,3-dihydro-1h-inden-1-one

    24. (e)-5,6-dimethoxy-2-(pyridin-4-ylmethylene)-2,3-dihydroinden-1-one;5,6-dimethoxy-2-(pyridin-4-ylmethylene)-2,3-dihydro-1h-inden-1-one

    2.3 Create Date
    2006-10-26
    3 Chemical and Physical Properties
    Molecular Weight 281.30 g/mol
    Molecular Formula C17H15NO3
    XLogP32.7
    Hydrogen Bond Donor Count0
    Hydrogen Bond Acceptor Count4
    Rotatable Bond Count3
    Exact Mass281.10519334 g/mol
    Monoisotopic Mass281.10519334 g/mol
    Topological Polar Surface Area48.4 Ų
    Heavy Atom Count21
    Formal Charge0
    Complexity414
    Isotope Atom Count0
    Defined Atom Stereocenter Count0
    Undefined Atom Stereocenter Count0
    Defined Bond Stereocenter Count1
    Undefined Bond Stereocenter Count0
    Covalently Bonded Unit Count1
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      Founded in 2003, Senary Chem is one of the Key High-Tech Enterprises of National Torch Plan. Senary locat...
      Founded in 2003, Senary Chem is one of the Key High-Tech Enterprises of National Torch Plan. Senary located in National Cangzhou Lingang Economic and Technological Development Zone,Cangzhou City,Hebei Province. Senary cover an area of 67,000 square meters, and 300 professionals work there. Senary R&D organization recognized as the Hebei Provincial Engineering Technology Center is comprised of two R & D centers in Tianjin and Cangzhou, and it employs 80 experienced scientists in total. Senary focus on the development, production and sales of advanced pharmaceutical intermediates. Especially, Senary has leading technology and manufacturing capacity for diabetes drug intermediates. All intermediates of DPP4 and SGLT2 class drugs on market have been commercialized production. Senary has 150 sets of 50 ~ 8000L reactor with annual production capacity of 1,000 tons, which can handle both low and high temperature reactions within -100 ~ 240 ℃ range, all kinds of catalytic reactions within 0 ~ 5MPa pressure, and moisture and/or oxygen sensitive reactions. Senary also has expertise in chiral synthesis with leading technologies. The advanced sewage treatment system at Senery has processing capacity of 600 tons daily. Senary has an excellent team that has rich quality management experience.We have established a set of normative and perfect quality managment system,monitoring the whole process of risk assessment,R&D,transfer from pilot scale to commercial production,manufacturing,analysis and sales service. Senary will continue to dedicate on the field of pharmaceutical intermediates to provide the best service for domestic and foreign API pharmaceutical companies with high quality and timely supply of products.
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        Green Stone Swiss Co ., ltd.is a high-tech enterprise of pharmaceuticals and health ingredients, and prov...
        Green Stone Swiss Co ., ltd.is a high-tech enterprise of pharmaceuticals and health ingredients, and provide customized products/OEM/ODM. We signed technical cooperation agreements with 7 Universities of Europe, USA and China, equipped with a set of advanced production and testing equipment to ensure product quality. Our manufactures Factory has first-class production equipment and strict quality management system, which covers an area of 6000 square meters, packing workshop covers 1800 square meters, laboratory covers 260 square meters, building area of 1600 square meters.
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          Jinan Chenghui Shuangda Chemical Co., Ltd is subordinate to Chengchuang Pharmaceutical Group, which is fo...
          Jinan Chenghui Shuangda Chemical Co., Ltd is subordinate to Chengchuang Pharmaceutical Group, which is formally established in March, 2002. It is a high-tech enterprise professionally producing pharmaceutical intermediates and fine chemical products inland. The company is located in Chengchuang industrial park, high-tech development district, Ji’nan, the capital city of Shandong Province. It is 1km far from Longitude Ten Road which is the main road of Jinan city, 5km from high way surrounding Ji’nan city and 25km from Yaoqiang airport in Ji’nan. It has superior geographic location and the traffic is very convenient.
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            LUNA Chemicals Co.,Ltd. markets and manufactures world-class quality Active Pharmaceutical Ingredients an...
            LUNA Chemicals Co.,Ltd. markets and manufactures world-class quality Active Pharmaceutical Ingredients and intermediate chemicals for generic pharmaceutical companies. Our Development Team focus strategically on the core therapeutic areas: cardiovascular, anti-depressant, allergic, healthcare and plant extraction. We provide technical support and efficient regulatory documentation for manufacturers, intellectual property(IP) was always carefully considered as well. We also provide excellent outsourcing services to customers and laboratory support.
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            VASUDHA PHARMA CHEM LIMITED was incorporated, as a public limited company under the Companies Act, 1956 i...
            VASUDHA PHARMA CHEM LIMITED was incorporated, as a public limited company under the Companies Act, 1956 in 1994-95 at Hyderabad in the state of Telangana, India. The company is engaged in the manufacturing of Active Pharmaceutical Ingredients (APIs), Pharma Intermediates for catering to the Global market. Initially, the focus was on the development of cost effective processes for several intermediates related to piperidone & piperidine derivatives. By 2003-04, the company gained world class expertise and became the largest manufacturer of piperidone & piperidine derivatives in the world.
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