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Home> Products > Basic Organic Chemicals > Organic Acid > CAS DataBase Listed 4 > CAS 4668-42-2
4668-42-2 structure

CAS 4668-42-2 Z-ASP-OME products price,suppliers

  • 49.0 g (196 mmol) of (S)-benzyl(2, 5-dioxotetrahydrofuran-3-yl)carbamate obtained in Step 1-1(2) was dissolved in 100 mL of ethyl acetate, and then 150 mL of methanol was added thereto, followed by stirring at room temperature for 5 hours. The mixture was dried under vacuum and dissolved in 200 mL of diisopropylether, and 34 mL of dicyclohexylamine was slowly added dropwise under stirring. The produced salt of (S)-3-((benzyloxycarbonyl)amino)-4-methoxy-4-oxobutanoic acid dicyclohexylamine was filtered, and suspended in 200 mL of distilled water. 200 mL of ethyl acetate was added thereto, and was adjusted to pH 2 with 6 N hydrochloric acid. After phase-separation, the organic layer was washed several times with distilled water, and dried over magnesium sulfate, followed by concentration under reduced pressure. 200 mL of diethyl ether and 20 mL of petroleum ether were added to the residual concentrate for crystallization. The produced crystals were filtered to give 32.3 g of the title compound (yield: 54percent).

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  • Name: Z-ASP-OME
  • Molecular Weight: 281.26
  • Formula: C13H15NO6
  • Synonyms: 1-Methyl N-Carbobenzoxy-L-aspartate; 1-Methyl N-Cbz-L-aspartate; N-ALPHA-BENZYLOXYCARBONYL-L-ASPARTIC ACID ALPHA-METHYL ESTER; N-BENZYLOXYCARBONYL-L-ASPARTIC ACID 1-METHYL ESTER; N-Carbobenzoxy-L-aspartic Acid 1-Methyl Ester; N-Cbz-L-aspartic Acid 1-Methyl Ester;
Properties Safety and Handling MSDS Computational chemical data
  • Cas NO.:4668-42-2
  • CID:7021783
  • Name:
  • Z-ASP-OME (Related Reference)
  • InChI:
  • InChI=1S/C13H15NO6/c1-19-12(17)10(7-11(15)16)14-13(18)20-8-9-5-3-2-4-6-9/h2-6,10H,7-8H2,1H3,(H,14,18)(H,15,16)/t10-/m0/s1
Safety Data
  • [Risk Codes]
  • R20/22:Harmful by inhalation and if swallowed
  • R37:Irritating to the respiratory system
  • R41:Risk of serious damage to eyes
  • [Safety Statements]
  • Molecular Weight:
  • 281.26
  • Density:
  • 1.304
  • Boiling Point:
  • 498.9°C at 760 mmHg
  • Melting Point:
  • 89.3 oC (dec.)
  • Flash Point:
  • 255.6°C
  • Storage Temperature:
  • ?20°C
  • Refractive index:
  • 1.539
  • More Properties>>
Upstream Product Downtream information
There are 86 suppliers who can provide Z-ASP-OME with CAS No. 4668-42-2
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  • Description:Name: L-Asparticacid, N-[(phenylmethoxy)carbonyl]-, 1-methyl ester Synonyms: Asparticacid, N-carboxy-, N-benzyl 1-methyl ester, L- (7CI,8CI);N-(Benzyloxycarbonyl)-L-asparticacid a-methyl ester;a-Methyl N-(benzyloxycarbonyl)-L-aspartate;Z-Asp-OMe; CAS Registry ...
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Z-L-Aspartic acid α-methyl ester
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  • Description:【Appearance】 White powder【Density】 1.304g/cm3【Melting Point】 89.3 oC (dec.)【Boiling Point】 498.9°C at 760 mmHg【Refractive Index】 1.539【Flash Point】 255.6°C【Storage temp】 20°C
  • Updatetime:May 26 2022 
L-Asparticacid, N-[(phenylmethoxy)carbonyl]-, 1-methyl ester
L-Asparticacid, N-[(phenylmethoxy)carbonyl]-, 1-methyl ester
  • Min.Order:1 Kilogram 
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  • Description:Asparticacid, N-carboxy-, N-benzyl 1-methyl ester, L- (7CI,8CI); N-(Benzyloxycarbonyl)-L-asparticacid a-methyl ester;N-Benzyloxycarbonylaspartic acid a-methyl ester; a-Methyl N-(benzyloxycarbonyl)-L-aspartate
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L-Asparticacid, N-[(phenylmethoxy)carbonyl]-, 1-methyl ester
L-Asparticacid, N-[(phenylmethoxy)carbonyl]-, 1-methyl ester
N-Cbz-L-Aspartic acid 1-methyl ester
N-Cbz-L-Aspartic acid 1-methyl ester
  • Updatetime:Nov 21 2018 
L-Asparticacid, N-[(phenylmethoxy)carbonyl]-, 1-methyl ester
L-Asparticacid, N-[(phenylmethoxy)carbonyl]-, 1-methyl ester
L-Asparticacid, N-[(phenylmethoxy)carbonyl]-, 1-methyl ester
Z-L-Aspartic acid α-methyl ester
Z-L-Aspartic acid α-methyl ester
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Z-Asp-OMe manufacturer
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  • Description:Superiority z-asp-ome Details Molecular Formula:C13H15NO6 Keywords:Z-Asp-OMe,4668-42-2,C13H15NO6
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N-Cbz-L-Aspartic acid 1-methyl ester
N-Cbz-L-Aspartic acid 1-methyl ester
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  • Updatetime:Dec 28 2016 
L-Asparticacid, N-[(phenylmethoxy)carbonyl]-, 1-methyl ester
L-Asparticacid, N-[(phenylmethoxy)carbonyl]-, 1-methyl ester...
  • Appearance:White Solid 
  • Purity:98.0% 
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  • Description:Superiority comply with cp,jp,ep,us grade Details Molecular Formula:C13H15NO6 Transportation:Shipped as non- dangerous chemicals Storage:Stored under room temperature in cool ... Keywords:4668-42-2,L-Asparticacid, N-[(phenylmethoxy)carbonyl]-, 1-methyl ester
  • Updatetime:Jan 09 2020 
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