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99477-24-4

4-bromoestra-1,3,5(10)-triene-3,16α,17β-triol is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

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  • 99477-24-4 Structure

  • Basic information

    1. Product Name: 4-bromoestra-1,3,5(10)-triene-3,16α,17β-triol
    2. Synonyms: 4-bromoestra-1,3,5(10)-triene-3,16α,17β-triol
    3. CAS NO:99477-24-4
    4. Molecular Formula:
    5. Molecular Weight: 367.283
    6. EINECS: N/A
    7. Product Categories: N/A
    8. Mol File: 99477-24-4.mol

  • Chemical Properties

    1. Melting Point: N/A
    2. Boiling Point: N/A
    3. Flash Point: N/A
    4. Appearance: N/A
    5. Density: N/A
    6. Refractive Index: N/A
    7. Storage Temp.: N/A
    8. Solubility: N/A
    9. CAS DataBase Reference: 4-bromoestra-1,3,5(10)-triene-3,16α,17β-triol(CAS DataBase Reference)
    10. NIST Chemistry Reference: 4-bromoestra-1,3,5(10)-triene-3,16α,17β-triol(99477-24-4)
    11. EPA Substance Registry System: 4-bromoestra-1,3,5(10)-triene-3,16α,17β-triol(99477-24-4)

  • Safety Data

    1. Hazard Codes: N/A
    2. Statements: N/A
    3. Safety Statements: N/A
    4. WGK Germany:
    5. RTECS:
    6. HazardClass: N/A
    7. PackingGroup: N/A
    8. Hazardous Substances Data: 99477-24-4(Hazardous Substances Data)

99477-24-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 99477-24-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,4,7 and 7 respectively; the second part has 2 digits, 2 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 99477-24:
(7*9)+(6*9)+(5*4)+(4*7)+(3*7)+(2*2)+(1*4)=194
194 % 10 = 4
So 99477-24-4 is a valid CAS Registry Number.

99477-24-4Upstream product

99477-24-4Downstream Products

99477-24-4Relevant articles and documents

Synthesis of 2-Methoxy- and 4-Methoxy-Estrogens with Halogen-Methoxy Exchange Reaction

Numazawa, Mitsuteri,Ogura, Yuko,Kimura, Katsuhiko,Nagaoka, Masao

, p. 3701 - 3715 (2007/10/02)

Synthesis of 2-methoxy- and 4-methoxy-estrone (6) and (9), 2-methoxy- and 4-methoxy-estradiol (15) and (18), and 2-methoxy- and 4-methoxy-estratriol (24) and (27) are described.Catalytic hydrogenation over Pd/C of 2,4-dibromo or 2,4-diiodo estrogens gave regioselectively the corresponding 4-halogeno derivatives in excellent yields.Reaction of 2-iodo or 4-iodo estradiol and 2-iodo or 4-iodo estriol with NaOCH3 in MeOH and dimethylformamide (DMF) in the presence of CuCl2 gave in an excellent yield and in a good yield, while (6) and (9) were also similarly obtained by the reaction with pyridine instead of DMF.

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