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  • Securities referred to as Lianlu Industrial,Securities code:838502
    Service Tel:+86-21-5793-5500 中文 | EN

    PRODUCT SHOW

    Lianlu Industrial

    Home > Products
    Estriol (EP 8.0)

    Molecular formula:  C18H24O3

    Molecular weight:   288.38

    Structural formula:

    CAS#:   50-27-1                                             

    Test items

    In-house Standard

    Analytical method

    Description

    White or almost white crystalline  powder

    Visual method

    Solubility

    Practically insoluble in water, sparingly soluble in ethanol (96% per cent)

    Visual method

    Identification

    IR:  Meets the requirements

    TLC:  Meets the requirements

    IR

    TLC

    Specific Rotation

    +60°~+64°

    EP8.0

    Loss on drying

    ≤ 0.5%

    EP8.0

    Particle Size

    ≤30μm

    Particle Size Analyzer

    Related substances

    Impurity A (RRT≈1.1)

    Impurity B (RRT≈0.4)

    Impurity C (RRT≈0.47)

    Impurity D (RRT≈0.5)

    Impurity E (RRT≈0.7)

    Impurity F (RRT≈0.75)

    Impurity G (RRT≈1.2)

    Unspecified impurity

    Sum of impurity other than A

     

    ≤ 0.5%

    ≤ 0.5%

    ≤ 0.5%

    ≤ 0.5%

    ≤ 0.5%

    ≤ 0.5%

    ≤ 0.5%

    ≤ 0.1%

    ≤ 1.0%

    HPLC

    Assay (On dried basis)

    97.0~103.0%

    HPLC

     

    Test items

    In-house Standard

    Analytical method

    Description

    White or almost white crystalline  powder

    Visual method

    Completeness of sotution

    The solution is clear

    Visual method

    Identification

    IR:  Meets the requirements

    UV:  Meets the requirements

    IR

    UV

    Specific Rotation

    +54°~+62°

    USP35

    Loss on drying

    ≤ 0.5%

    USP35

    Chromatographic purity

    Sum of impurity

     

    ≤ 2.0%

    USP35(TLC)

    Assay (On dried basis)

    97.0~102.0%

    USP35

     

     


    Contact Us
    +86-21-5793-5500
    E-mail:lianluxs007@shllgf.com
    Add: Room 702,Building 46,No.900 Haili Road,Jinshan,Shanghai 201508,China.
    Factory: Wan Zai Industrial Park, Yichun City, Jiangxi Province
    R&D Department: Industrial Incubator Park, No. 688, Qiushi Road, Jinshan District, Shanghai
    Copyright?(C)?2019,Shanghai Lianlu Industrial Co., Ltd.?All Rights Reserved.Supported by?ChemNet?ChinaChemNet?Toocle
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