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Home/Compounds/Pharmaceutical Intermediate/(S)-2-((S)-2-((((9H-FLUOREN-9-YL)METHOXY)CARBONYL)AMINO)-3-METHYLBUTANAMIDO)-5-UREIDOPENTANOIC ACID
C26H32N4O6
496.6 g/mol
Pharmaceutical IntermediateWarning

(S)-2-((S)-2-((((9H-FLUOREN-9-YL)METHOXY)CARBONYL)AMINO)-3-METHYLBUTANAMIDO)-5-UREIDOPENTANOIC ACID

CAS159858-21-6EC958-176-8
Category
Pharmaceutical Intermediate
Compound Class
Peptide
Primary Use
Pharmaceutical Intermediate

This compound is a protected dipeptide consisting of valine and citrulline, with a fluorenylmethoxycarbonyl (Fmoc) protecting group. It is used as an intermediate in peptide synthesis, particularly in the preparation of conjugates for research applications.

peptide synthesis intermediateresearch reagent for conjugate preparation

Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.

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Related Compounds

SimilarStructure SimilarSimilarity 0.75

Fmoc-Val-Lys(Boc)-OH

CAS138486-75-6

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SimilarStructure SimilarSimilarity 0.75

Fmoc-Val-Cit-PAB

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ApplicationSame Use

N-Boc-N'-Fmoc-L-ornithine

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ApplicationSame Use

(23S,50S)-50-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-23-(tert-butoxycarbonyl)-2,2-dimethyl-4,21,26,35,44-pentaoxo-3,30,33,39,42-pentaoxa-22,27,36,45-tetraazahenpentacontan-51-oic acid

CAS1662688-20-1

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ApplicationSame Use

Boc-His(Trt)-Aib-OH

CAS2061897-68-3

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ApplicationSame Use

(2S)-4-[[1-(4,4-Dimethyl-2,6-dioxocyclohexylidene)ethyl]amino]-2-[[(9H-fluoren-9-ylmethoxy)carbonyl]amino]butanoic acid

CAS235788-61-1

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ReferenceSame Category

Dxd

CAS1599440-33-1

pharmaceutical intermediate

ReferenceSame Category

(3R)-3-[(2-methylpropan-2-yl)oxycarbonylamino]butanoic acid

CAS159991-23-8

pharmaceutical intermediate

Related Reading

Therapeutic Peptides in 2026: This Year's Breakthroughs

2026 has been a concentrated year for peptide therapeutics. Efficacy reached a new high in late-stage trials, the obesity field moved beyond the incretins to amylin, the oral route reached weight management, and peptide-guided radioligand therapy kept advancing — each point tied to a specific 2025–2026 result.

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Safety Reference

Harmful
Harmful
Warning
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
Identifiers
IUPAC Name

(2S)-5-(carbamoylamino)-2-[[(2S)-2-(9H-fluoren-9-ylmethoxycarbonylamino)-3-methylbutanoyl]amino]pentanoic acid

InChIKey

ZJLNQOIFTYLCHC-VXKWHMMOSA-N

SMILES

CC(C)[C@@H](C(=O)N[C@@H](CCCNC(=O)N)C(=O)O)NC(=O)OCC1C2=CC=CC=C2C3=CC=CC=C13

Synonyms (8)
  • Fmoc-L-valyl-L-citrulline
  • Fmoc-Val-Cit
  • Fmoc-Val-Cit-OH

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