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CAS

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90467-27-9

7β-[(2-Hydroxybenzylidene)amino]-3-(hydroxymethyl)cepham-3-ene-4-carboxylic acid diphenylmethyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

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  • 90467-27-9 Structure

  • Basic information

    1. Product Name: 7β-[(2-Hydroxybenzylidene)amino]-3-(hydroxymethyl)cepham-3-ene-4-carboxylic acid diphenylmethyl ester
    2. Synonyms: (6R,7R)-3-Hydroxymethyl-8-oxo-7α-salicylideneamino-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid benzhydryl ester;7β-[(2-Hydroxybenzylidene)amino]-3-(hydroxymethyl)cepham-3-ene-4-carboxylic acid diphenylmethyl ester
    3. CAS NO:90467-27-9
    4. Molecular Formula: C28H24N2O5S
    5. Molecular Weight: 500.56556
    6. EINECS: N/A
    7. Product Categories: N/A
    8. Mol File: 90467-27-9.mol

  • Chemical Properties

    1. Melting Point: N/A
    2. Boiling Point: 754.5°C at 760 mmHg
    3. Flash Point: 410.1°C
    4. Appearance: /
    5. Density: 1.36g/cm3
    6. Vapor Pressure: 6.39E-24mmHg at 25°C
    7. Refractive Index: 1.681
    8. Storage Temp.: N/A
    9. Solubility: N/A
    10. CAS DataBase Reference: 7β-[(2-Hydroxybenzylidene)amino]-3-(hydroxymethyl)cepham-3-ene-4-carboxylic acid diphenylmethyl ester(CAS DataBase Reference)
    11. NIST Chemistry Reference: 7β-[(2-Hydroxybenzylidene)amino]-3-(hydroxymethyl)cepham-3-ene-4-carboxylic acid diphenylmethyl ester(90467-27-9)
    12. EPA Substance Registry System: 7β-[(2-Hydroxybenzylidene)amino]-3-(hydroxymethyl)cepham-3-ene-4-carboxylic acid diphenylmethyl ester(90467-27-9)

  • 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: 90467-27-9(Hazardous Substances Data)

90467-27-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 90467-27-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,4,6 and 7 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 90467-27:
(7*9)+(6*0)+(5*4)+(4*6)+(3*7)+(2*2)+(1*7)=139
139 % 10 = 9
So 90467-27-9 is a valid CAS Registry Number.
InChI:InChI=1/C28H24N2O5S/c31-16-21-17-36-27-23(29-15-20-13-7-8-14-22(20)32)26(33)30(27)24(21)28(34)35-25(18-9-3-1-4-10-18)19-11-5-2-6-12-19/h1-15,23,25,27,31-32H,16-17H2/b29-15+/t23-,27-/m1/s1

90467-27-9Relevant articles and documents

Improvement of the synthesis of diphenylmethyl 7β-(o-hydroxy)benzylideneamino-3-hydroxymethyl-3-cephem-4-carboxylate

Lopez, Miguel,Rodriguez, Zalua,Valdes, Barbara,Velez, Herman,Agueero, Juan,Fini, Adamo,Gonzalez, Maritza

, p. 629 - 631 (2007/10/03)

The title product (I) is synthesized currently from 7-aminocephalosporanic acid, and diphenyldiazomethane (DDM) is used as a protective reagent of the acid function for further reactions. When DDM was prepared from benzophenone hydrazone by reaction with chloramine T, it was resulted impure by p-toluenesulfonamide, formed as side product, which cannot be removed during the final purification step carried out according to the literature procedure. Two simple methods are proposed here to obtain I with the suitable degree of purity necessary for a drug.

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