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CAS

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137428-31-0

(S)-N,N-dibenzylaspartic acid β-methyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

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  • 137428-31-0 Structure

  • Basic information

    1. Product Name: (S)-N,N-dibenzylaspartic acid β-methyl ester
    2. Synonyms: (S)-N,N-dibenzylaspartic acid β-methyl ester
    3. CAS NO:137428-31-0
    4. Molecular Formula:
    5. Molecular Weight: 327.38
    6. EINECS: N/A
    7. Product Categories: N/A
    8. Mol File: 137428-31-0.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: (S)-N,N-dibenzylaspartic acid β-methyl ester(CAS DataBase Reference)
    10. NIST Chemistry Reference: (S)-N,N-dibenzylaspartic acid β-methyl ester(137428-31-0)
    11. EPA Substance Registry System: (S)-N,N-dibenzylaspartic acid β-methyl ester(137428-31-0)

  • 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: 137428-31-0(Hazardous Substances Data)

137428-31-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 137428-31-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,4,2 and 8 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 137428-31:
(8*1)+(7*3)+(6*7)+(5*4)+(4*2)+(3*8)+(2*3)+(1*1)=130
130 % 10 = 0
So 137428-31-0 is a valid CAS Registry Number.

137428-31-0Relevant articles and documents

SITAGLIPTIN INTERMEDIATE COMPOUNDS, PREPARATION METHODS AND USES THEREOF

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Paragraph 0051, (2013/03/26)

Sitagliptin intermediate compounds of formula (f) and methods of preparation and use thereof are disclosed. Compounds of formula (f) are prepared by the following steps: compounds of formula (a) are subjected to electrophilic reaction with benzyl halides to form compounds of formula (b), which then react with compounds of formula (i) to form novel compounds of formula (e). Gignard agents formed from 2,4,5-trifluoro brmobenzene and magnesium metal react with compounds of formula (e) to afford compounds of formula (f), which are novel intermediates for the preparation of Sitagliptin intermediates of formula (g). Compounds of formula (f) are subjected to reduction by Pd/C, debenzylation, substitution of protecting group to form compounds of formula (g). Compounds of formula (a), (b), (i), (e), (f), and (g) have the following structures, in which R is protecting group of carboxyl and R2 is (substituted) hydrocarbyl.

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