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Organolithium

Organolithium compounds possess direct bonds between carbon and lithium atoms. Organolithium reagents are strongly basic, highly reactive nucleophiles used to transfer organic groups or lithium atoms to substrates during organic synthesis reactions.

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1

Medchemexpress LLC (1R,2S)-1-tert-Butoxycarbonylamino-2-vinylcyclopropanecarboxylic acid | 159622-10-3 | 99.88% | 227.26 | 10 G
SDP

(1R,2S)-1-tert-Butoxycarbonylamino-2-vinylcyclopropanecarboxylic acid is a chemical compound suitable for laboratory research. It appears as a white to off-white solid with a high purity of 99.88%. It is used for manufacturing substances and various laboratory applications.

  • High purity (99.88%)
  • White to off-white solid appearance
  • Specific storage conditions for powder (-20°C for 3 years, 4°C for 2 years)
  • Specific storage conditions when in solvent (-80°C for 6 months, -20°C for 1 month)
  • Identified for laboratory chemicals and substance manufacturing

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2

Medchemexpress LLC D-lysine, N2,N6-bis[(1,1-dimethylethoxy)carbonyl] | 65360-27-2 | MFCD00076960 | ≥95.0% | 346.42 g·mol⁻¹ | C16H30N2O6 | 10 G
SDP

N2,N6-Bis(tert-butoxycarbonyl)-D-lysine is a Boc-protected derivative of D-lysine used as a reagent and intermediate in peptide and organic synthesis. The dual Boc protection of the alpha and side-chain amine groups allows selective deprotection and stepwise coupling in multi-step syntheses. Supplied for research use with typical purity ≥95%, it is intended for workflows requiring temporary protection of lysine amines.

  • Protects both alpha and side-chain amines during synthesis.
  • Enables selective deprotection strategies in peptide assembly.
  • Suitable for solid-phase and solution-phase peptide synthesis.
  • Supplied with typical purity of ≥95% for research use.
  • Available in multiple pack sizes for lab-scale work.

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3

Medchemexpress LLC 2-(bis(2-(tert-butoxy)-2-oxoethyl)amino)acetic acid | 171557-31-6 | 97.0% | 303.35 g/mol | C14H25NO6 | 5 G
SDP

2-(bis(2-(tert-butoxy)-2-oxoethyl)amino)acetic acid is a tert-butoxy-protected glycine derivative supplied as a solid reagent for research and analytical applications. It is commonly used as an intermediate in peptide synthesis and organic chemistry.

  • Chemical formula C14H25NO6.
  • Molecular weight 303.35 g/mol.
  • Purity 97.0%.
  • Physical form solid (powder).
  • Available sizes 1 g, 5 g, 10 g, 50 g (quote).
  • Storage powder: -20 °C (3 years) or 4 °C (2 years); in solvent: -80 °C (6 months) or -20 °C (1 month).

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4

Medchemexpress LLC Methyl N-(tert-butoxycarbonyl)-O-methyl-L-serinate | 134167-07-0 | MFCD18837831 | 97.0% | 233.26 g/mol | C10H19NO5 | 250 MG
SDP

Methyl N-(tert-butoxycarbonyl)-O-methyl-L-serinate is a Boc-protected, O-methylated methyl ester of L-serine used as a research reagent and synthetic intermediate in organic and peptide synthesis.

  • Purity 97.0%.
  • Molecular weight 233.26 g/mol.
  • Chemical formula C10H19NO5.
  • Cas number 134167-07-0.
  • Available sizes 250 mg, 500 mg, 1 g, 5 g, 10 g, 25 g.
  • Storage pure form: -20°C (up to 3 years) or 4°C (up to 2 years).
  • Certificate of analysis and safety data sheet available.

ENCOMPASS_PREFERRED
5

Medchemexpress LLC N2,N6-bis(tert-butoxycarbonyl)-D-lysine | 65360-27-2 | MFCD00076960 | >95.0% | 346.42 g·mol⁻¹ | C16H30N2O6 | 25 G
SDP

N2,N6-bis(tert-butoxycarbonyl)-D-lysine is a Boc-protected derivative of D-lysine used as a building block in peptide synthesis and organic synthesis. It enables temporary protection of both the α- and ε-amino groups to allow selective functionalization and coupling steps.

  • Provides dual Boc protection for the α- and ε-amino groups of lysine.
  • Facilitates peptide synthesis and selective side-chain modifications.
  • Supplied as a colorless to off-white solid-liquid mixture.
  • High purity (≥95.0%).
  • Recommended storage: pure form -20°C (3 years) or 4°C (2 years).
  • Available in 5 g, 10 g, 25 g, and 50 g pack sizes.

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6

Medchemexpress LLC Methyl N-(tert-butoxycarbonyl)-O-methyl-L-serinate | 134167-07-0 | MFCD18837831 | 97.0% | 233.26 g/mol | C10H19NO5 | 10 G
SDP

Methyl N-(tert-butoxycarbonyl)-O-methyl-L-serinate is a Boc-protected O-methyl derivative of L-serine used as an intermediate in peptide and organic synthesis. It is supplied as a solid with defined purity and storage recommendations.

  • Boc-protected O-methyl L-serine methyl ester.
  • Used as an intermediate in peptide and organic synthesis.
  • Molecular formula: C10H19NO5.
  • Molecular weight: 233.26 g/mol.
  • Purity: 97.0%.
  • Storage: pure form -20°C (3 years), 4°C (2 years); in solvent -80°C (6 months), -20°C (1 month).
  • Available pack sizes: 250 mg, 500 mg, 1 g, 5 g, 10 g, 25 g, 50 g (quote).

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