98% up 8-Bromo-7-But-2-Ynyl-3-Methyl-Purine-2,6-Dione / Linagliptin Intermediate 666816-98-4

Category:Intermediates > Pharmaceutical Intermediates
Product Name:98% up 8-Bromo-7-But-2-Ynyl-3-Methyl-Purine-2,6-Dione / Linagliptin Intermediate 666816-98-4
CAS No.:666816-98-4
Standard:USP, BP, EP, JP, In-house Standards
Price(USD):Negotiable
Company:Sinoway Industrial Co.Ltd.

Basic Info
  • Grade: Pharmaceutical Grade

    Factory Location: Xiamen, Fujian

    Main Sales Markets: North America,Central/South America,Western Europe,Eastern Europe,Australasia,Asia,Middle East

  • Monthly Production Capacity: 1000kg

    Packaging Information: 1kg/bottle

  • Delivery Lead Time: 7 days after payment

    Sample Provided: yes

    Payment Terms: L/L

    Product Information

     

    Product name

    8-Bromo-7-but-2-ynyl-3-methyl-purine-2,6-dione;

    Linagliptin intermediate

    CAS No.

    666816-98-4

    Molecular Formula

    C10H9BrN4O2

    Molecular Weight

    297.111

    Quality Standard

    99% up by HPLC

    Appearance

    White powder

     

    COA of 8-Bromo-7-but-2-ynyl-3-methyl-purine-2,6-dione

     

    ITEMS

    SPECIFICATION

    RESULT

    Appearance

    White powder

    Conforms

    Water content by KF

    ≤ 0.50%

    0.12%

     

     

    Identity

    IR:

    Conforms to spectrum of the standard

     

    Conforms

    HPLC

    Conforms to retention time of the standard

     

    Conforms

     

     

    Solvent residue by GC

    Ethyl acetate ≤ 500ppm

    67 ppm

    Heptane ≤ 500ppm

    55 ppm

    Methanol ≤ 300ppm

    23 ppm

    Toluene ≤ 89ppm

    ND

    Acetonitrile ≤ 41ppm

    ND

    Residue on ignition

    ≤ 0.10%

    0.02%

    Assay(By Anhydrous base)

    99.0~103.0%

    99.89%

     

    Usage

     

    8-Bromo-7-but-2-ynyl-3-methyl-purine-2,6-dione is one of key intermediates of Linagliptin.

     

    Physical properties of 8-Bromo-7-but-2-ynyl-3-methyl-purine-2,6-dione:

    (1)ACD/LogP: 1.615;

    (2)# of Rule of 5 Violations: 0;

    (3)ACD/LogD (pH 5.5): 1.62;

    (4)ACD/LogD (pH 7.4): 1.60;

    (5)ACD/BCF (pH 5.5): 9.94;

    (6)ACD/BCF (pH 7.4): 9.65;

    (7)ACD/KOC (pH 5.5): 180.10;

    (8)ACD/KOC (pH 7.4): 174.78;

    (9)#H bond acceptors: 6 ;

    (10)#H bond donors: 1;

    (11)#Freely Rotating Bonds: 1;

    (12)Polar Surface Area: 67.23 Å2;

    (13)Index of Refraction: 1.694;

    (14)Molar Refractivity: 66.441 cm3;

    (15)Molar Volume: 173.014 cm3;

    (16)Polarizability: 26.339×10-24 cm3;

    (17)Surface Tension: 58.492 dyne/cm;

    (18)Density: 1.717 g/cm3

     

    We have a professional team specialized in custom developing & manufacturing pharmaceutical intermediates or APIs.

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