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81474-34-2

[(2R,3S)-3-[1-(tert-Butyl-dimethyl-silanyloxy)-ethyl]-2-(2-tert-butylsulfanyl-acetylsulfanyl)-4-oxo-azetidin-1-yl]-hydroxy-acetic acid 4-nitro-benzyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

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  • 81474-34-2 Structure

  • Basic information

    1. Product Name: [(2R,3S)-3-[1-(tert-Butyl-dimethyl-silanyloxy)-ethyl]-2-(2-tert-butylsulfanyl-acetylsulfanyl)-4-oxo-azetidin-1-yl]-hydroxy-acetic acid 4-nitro-benzyl ester
    2. Synonyms:
    3. CAS NO:81474-34-2
    4. Molecular Formula:
    5. Molecular Weight: 600.83
    6. EINECS: N/A
    7. Product Categories: N/A
    8. Mol File: 81474-34-2.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: [(2R,3S)-3-[1-(tert-Butyl-dimethyl-silanyloxy)-ethyl]-2-(2-tert-butylsulfanyl-acetylsulfanyl)-4-oxo-azetidin-1-yl]-hydroxy-acetic acid 4-nitro-benzyl ester(CAS DataBase Reference)
    10. NIST Chemistry Reference: [(2R,3S)-3-[1-(tert-Butyl-dimethyl-silanyloxy)-ethyl]-2-(2-tert-butylsulfanyl-acetylsulfanyl)-4-oxo-azetidin-1-yl]-hydroxy-acetic acid 4-nitro-benzyl ester(81474-34-2)
    11. EPA Substance Registry System: [(2R,3S)-3-[1-(tert-Butyl-dimethyl-silanyloxy)-ethyl]-2-(2-tert-butylsulfanyl-acetylsulfanyl)-4-oxo-azetidin-1-yl]-hydroxy-acetic acid 4-nitro-benzyl ester(81474-34-2)

  • 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: 81474-34-2(Hazardous Substances Data)

81474-34-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 81474-34-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,4,7 and 4 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 81474-34:
(7*8)+(6*1)+(5*4)+(4*7)+(3*4)+(2*3)+(1*4)=132
132 % 10 = 2
So 81474-34-2 is a valid CAS Registry Number.

81474-34-2Relevant articles and documents

FROM PENICILLIN TO PENEM AND CARBAPENEM. 1. RACEMIZATION OF 6,6-DIBROMO SECOPENICILLIN, AND SYNTHESIS OF 2-OXO PENAM DERIVATIVE

Hirai, Koichi,Iwano, Yuji,Fujimoto, Katsumi

, p. 201 - 207 (2007/10/02)

From 6-APA the azetidinone derivative (7) which has (R)-hydroxyethyl substituent at C-6 was prepared effectively.From dibromoseco derivative (10) the same type of compounds, 17 and 18 which has (S) type substituent were prepared, however these were proved to be optically inactive dl-form.Racemization occurred during the proces of the formation of the secopenicillin (10) with excess CH3I and 2.5 eq. of NaH or KO-t-Bu in THF via the acyliminium intermediate (22).The 2-oxo penam derivative (27) was prepared from 17 as shown in Fig. 4.

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