Papain inhibitor - ≥98% , CAS No.70195-20-9

CAS: 70195-20-9 Cat. No.: P1441532 Molecular Weight: 451.49 PubChem CID: 125825

GRADE & PURITY ≥98%

Storage

Desiccated,Store at -80°C

Shipped In

Dry ice packs + Cold packs

Overview

Papain inhibitor (Glycylglycyl-L-tyrosyl-L-arginine) acts as an effective competitive inhibitor to papain , with a K i of 9 μM at pH 6.2.

Specifications

Specifications & Purity

≥98%

Storage

Desiccated, Store at -80°C

Shipped In

Dry ice packs + Cold packs

This product requires cold chain shipping. Ground and other economy services are not available.

Action Type

INHIBITOR

Purity

≥98%

Names and Identifiers

• Canonical Smiles: C1=CC(=CC=C1CC(C(=O)NC(CCCN=C(N)N)C(=O)O)NC(=O)CNC(=O)CN)O
• IUPAC Name: (2S)-2-[[(2S)-2-[[2-[(2-aminoacetyl)amino]acetyl]amino]-3-(4-hydroxyphenyl)propanoyl]amino]-5-(diaminomethylideneamino)pentanoic acid
• InChIKey: FJPHHBGPPJXISY-KBPBESRZSA-N
• INCHI: 1S/C19H29N7O6/c20-9-15(28)24-10-16(29)25-14(8-11-3-5-12(27)6-4-11)17(30)26-13(18(31)32)2-1-7-23-19(21)22/h3-6,13-14,27H,1-2,7-10,20H2,(H,24,28)(H,25,29)(H,26,30)(H,31,32)(H4,21,22,23)/t13-,14-/m0/s1
• Isomeric SMILES: C1=CC(=CC=C1C[C@@H](C(=O)N[C@@H](CCCN=C(N)N)C(=O)O)NC(=O)CNC(=O)CN)O
• PubChem CID: 125825
• Molecular Weight: 451.49

Taxonomic Classification

Taxonomy Tree

• Kingdom Organic compounds
  • Superclass Organic acids and derivatives
    • Class Carboxylic acids and derivatives
      • Subclass Amino acids, peptides, and analogues
        • Level5 Peptides
          • Level6 Oligopeptides

• Kingdom: Organic compounds
• Superclass: Organic acids and derivatives
• Class: Carboxylic acids and derivatives
• Subclass: Amino acids, peptides, and analogues
• Intermediate Tree Nodes: Peptides
• Direct Parent: Oligopeptides
• Alternative Parents: Tyrosine and derivatives Phenylalanine and derivatives N-acyl-L-alpha-amino acids Alpha amino acid amides Amphetamines and derivatives 1-hydroxy-2-unsubstituted benzenoids Fatty amides Secondary carboxylic acid amides Guanidines Amino acids Propargyl-type 1,3-dipolar organic compounds Monocarboxylic acids and derivatives Carboxylic acids Carboximidamides Organopnictogen compounds Organic oxides Monoalkylamines Hydrocarbon derivatives Carbonyl compounds
• Molecular Framework: Aromatic homomonocyclic compounds
• Substituents: Alpha-oligopeptide - Tyrosine or derivatives - Phenylalanine or derivatives - N-acyl-l-alpha-amino acid - N-acyl-alpha amino acid or derivatives - N-acyl-alpha-amino acid - Alpha-amino acid amide - Amphetamine or derivatives - Alpha-amino acid or derivatives - N-substituted-alpha-amino acid - 1-hydroxy-2-unsubstituted benzenoid - Phenol - Fatty acyl - Benzenoid - Fatty amide - Monocyclic benzene moiety - Amino acid - Secondary carboxylic acid amide - Guanidine - Carboxamide group - Amino acid or derivatives - Organic 1,3-dipolar compound - Propargyl-type 1,3-dipolar organic compound - Carboximidamide - Monocarboxylic acid or derivatives - Carboxylic acid - Organic nitrogen compound - Organic oxygen compound - Organopnictogen compound - Organic oxide - Hydrocarbon derivative - Primary amine - Organooxygen compound - Organonitrogen compound - Primary aliphatic amine - Carbonyl group - Amine - Aromatic homomonocyclic compound
• Description: This compound belongs to the class of organic compounds known as oligopeptides. These are organic compounds containing a sequence of between three and ten alpha-amino acids joined by peptide bonds.
• External Descriptors: Not available

Data sources

1. Djoumbou Feunang Y, Eisner R, Knox C, Chepelev L, Hastings J, Owen G, Fahy E, Steinbeck C, Subramanian S, Bolton E, Greiner R, and Wishart DS. ClassyFire: Automated Chemical Classification With A Comprehensive, Computable Taxonomy. Journal of Cheminformatics, 2016, 8:61.

DOI: 10.1186/s13321-016-0174-y

References

1. Xue Wang, Lu Zhang, Mohan Wang, Hongjiang Ma, Shiwei Liu, Meng Wang, Youqiang Yu, Guoyu Liu, Qiuge Cao, Xi Wang, Xishan Ma, Peng Yuan, Jia Liu, Yongjiu Zhang, Shenglin Duan.  (2024)  A novel multiple plant-based milk alternative containing various preprocessed grains achieves better performance in protein digestibility and free amino acid profile via in vitro gastrointestinal digestion analysis.  Food Science & Nutrition,      [PMID:39554344] [10.1002/fsn3.4177]

2. Shulong Cai, Liqi Fan, Dan Liu, Changxing Wei, Na Yang, Xichao Fu, Rong Tang, Jucai Xu, Sheng Yin, Xin Chen.  (2025)  A peptidomics-based investigation of the synergistic effects of neutral and Alcalase proteases on release of antioxidant peptides from soybean protein isolates.  FOOD CHEMISTRY,      [PMID:41101106] [10.1016/j.foodchem.2025.146696]

3. Wenqi Zhang, Houyi Peng, Chen Wang, Xiaohui Ju, Weixing Li.  (2026)  Smart nanofiltration membrane for cutting oligomeric soybean peptides.  SEPARATION AND PURIFICATION TECHNOLOGY,      [PMID:] [10.1016/j.seppur.2026.137278]