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CAS

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16689-16-0

Val-Tyr-Ser-ONB, also known as Valine-Tyrosine-Serine-Ortho-Nitrobenzyl, is a tetrapeptide consisting of four amino acids: valine, tyrosine, serine, and a protected serine residue with an ortho-nitrobenzyl (ONB) group. This specific sequence of amino acids is of interest in the field of peptide chemistry and drug design, as it can be used to study protein-protein interactions, enzyme substrate specificity, and the development of novel therapeutic agents. The ONB group serves as a protecting group for the serine hydroxyl group, which can be removed under specific conditions to reveal the free serine residue, allowing for further chemical modifications or reactions. The synthesis and study of Val-Tyr-Ser-ONB can provide valuable insights into the structure-activity relationships of peptides and their potential applications in medicine and biotechnology.

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  • 16689-16-0 Structure

  • Basic information

    1. Product Name: Val-Tyr-Ser-ONB
    2. Synonyms:
    3. CAS NO:16689-16-0
    4. Molecular Formula:
    5. Molecular Weight: 502.524
    6. EINECS: N/A
    7. Product Categories: N/A
    8. Mol File: 16689-16-0.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: Val-Tyr-Ser-ONB(CAS DataBase Reference)
    10. NIST Chemistry Reference: Val-Tyr-Ser-ONB(16689-16-0)
    11. EPA Substance Registry System: Val-Tyr-Ser-ONB(16689-16-0)

  • 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: 16689-16-0(Hazardous Substances Data)

16689-16-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 16689-16-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,6,6,8 and 9 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 16689-16:
(7*1)+(6*6)+(5*6)+(4*8)+(3*9)+(2*1)+(1*6)=140
140 % 10 = 0
So 16689-16-0 is a valid CAS Registry Number.

16689-16-0Upstream product

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