Jingmen City Qiangsheng Industrial Co., Ltd.
    Jingmen City Qiangsheng Industrial Co., Ltd.
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    Jingmen City Qiangsheng Chemical Co., Ltd.
    Add: Macheng Industrial Park, Duodao District, Jingmen City, Hubei, China
    P. C.: 448000
    Tel: +86-724-2403388
    Fax: +86-724-2403386
    Contact: Mr. Xiao
    Mobile: +86-13971836398

    Pigment red 185

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    Natural color:

    Dilute color:

    Pigment red is a kind of dyestuff and pigment, molecular formula is C27H24N6O6S, molecular weight is 560.5811.

    Chemical formula:


    Basic information  

    Product name:pigment red 185

    Alias:2-Naphthalenecarboxamide, N-(2,3-dihydro-2-oxo-1H-benzimidazol-5-yl)-3-hydroxy-4-((2-methoxy-5-methyl-4-((methylamino)sulfonyl)phenyl)azo)-; 2-Naphthalenecarboxamide, N-(2,3-dihydro-2-oxo-1H-benzimidazol-5-yl)-3-hydroxy-4-(2-(2-methoxy-5-methyl-4-((methylamino)sulfonyl)phenyl)diazenyl)-; 

    CAS RN:51920-12-8

    Molecular formula:C27H24N6O6S

    Molecular weight:560.5811

    Physical property data  

    Hue or color tone: bright blue light red
    Relative density/(g/cm3): 1.45
    Bulk density/(lb/gal): 11.2-11.6
    Average particle size/μm: 180
    Particle shape: small flake
    Specific surface area/(m2/g): 45;43-47
    PH value/(10% sizing agent): 6.5
    Oil absorption/(g/100g): 97
    Covering power: transparent

    Main uses  

    Metric hue angle is 358.0° (1/3SD, HDPE), poorly soluble in common organic solvents. Heat resistance in printing ink is 220℃/10min, it is suitable for metal decoration and laminated plastic, light fastness is 6-7 grade (1/1SD); in plastic tinting, light fastness is 6-7 grade (1/3SD), in PE tinting, heat resistance <200℃.

    System No.  

    CAS RN: 51920-12-8

    EINECS No.: 257-515-0

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