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Raw oil Nandrolone Steroid γ-Butyrolactone GBL Pharma Grade CAS 96-48-0

Raw oil Nandrolone Steroid γ-Butyrolactone GBL Pharma Grade CAS 96-48-0

    • Raw oil Nandrolone Steroid γ-Butyrolactone GBL Pharma Grade CAS 96-48-0
    • Raw oil Nandrolone Steroid γ-Butyrolactone GBL Pharma Grade CAS 96-48-0
  • Raw oil Nandrolone Steroid γ-Butyrolactone GBL Pharma Grade CAS 96-48-0

    Product Details:

    Place of Origin: China
    Brand Name: ORIPHARM
    Certification: KOSHER/ISO9001/SGS
    Model Number: XALY

    Payment & Shipping Terms:

    Minimum Order Quantity: 1 L
    Packaging Details: Double food grade plastics inside; Environmental protection carton/barrel outside or Customized packages.
    Delivery Time: 3-5 work days
    Payment Terms: T/T, Western Union, MoneyGram
    Supply Ability: Negotiation
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    Detailed Product Description
    Synonyms: Gamma-Butyrolactone; GBL Formula: C4H6O2
    Formula Weight: 86.09 G·mol−1 CAS: 96-48-0
    Color: Transparent Liquid Assay: 99% Min

    γ-Butyrolactone(GBL) Raw oil Nandrolone Steroid Pharma Grade CAS 96-48-0
     
     

    Product Nameγ-Butyrolactone
    CAS No.58-20-8
    Synonymsgamma-Butyrolactone; GBL
    Molecular FormulaC4H6O2
    Molecular Weight86.09 g·mol−1
    StructureGamma-Butyrolactone.svg
    Purity99% min
    Usagepharmaceutical material
    CharacterTransparent liquid
    GradePharmaceutical Grade
    StandardUSP,CP
    Delivery methodEMS, DHL, TNT, FedEx
     
    Description:
    Regardless of numerous anticipated advantages on the bioderived γ-butyrolactone (γ-BL) as an efficient comonomer to modulate supplies properties of its copolyesters, the presently unmet challenge hinders access to such copolyesters with high γ-BL incorporations as a consequence of unfavorable thermodynamics toward the ring-opening polymerization in the hugely steady, commonly referred to as “nonstrained”, γ-BL. Here we report the effective copolymerization of γ-BL with two typical cyclic esters with very diverse monomer thermodynamic polymerizability, ε-caprolactone (ε-CL) and δ-valerolactone (δ-VL), leading to a series of comparatively high molecular weight (Mn as much as 135 kg/mol) random copolyesters with unprecedented levels of γ-BL incorporations (as much as 84.0 mol %) and hence giving access to γ-BL-based copolyesters inside the whole composition variety required for extensive investigations in to the composition-dependent physical properties and degradation behavior in the resulting copolyesters. This copolymerization was enabled by the judiciously selected metal and organic catalysts that exhibit unique kinetic behavior or monomer selectivity, made to a lot more correctly compete the “nonstrained” γ-BL against the relatively high-strained lactones toward ring-opening. The successful synthesis on the copolyesters with high γ-BL incorporations of >50 mol % led to the discovery of the eutectic phase from the γ-BL/ε-CL copolymer using a eutectic temperature Teu of 11.0 °C along with a eutectic composition Xeu of 66.0% γ-BL; hence, at this composition, the copolymer becomes a viscous liquid at space temperature, though the two constituent homopolymers are semicrystalline solids. Other significant composition-dependent properties of γ-BL-based copolyesters, such as thermal transitions, cocrystallization, at the same time as thermal and hydrolytic degradation behaviors, have also been examined.
     
    γ-Butyrolactone(GBL) Raw oil Nandrolone Steroid Pharma Grade CAS 96-48-0

     

    COA:

    Productγ-ButyrolactoneCAS No.58-20-8
    Quantity1KGDate Of Manu2018-11-12
    Test standardIn-house quality standardExpiry date2020-11-11
    ItemsSpecificationsResults
    AppearanceTransparent liquidTransparent liquid
    Assay≥99%99.70%
    Loss on Drying≤1.0%0.5%
    Conclusion: The product meets In-house specifications.
     
     
     


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