(S)-2-((S)-2-Amino-3-(1H-imidazol-4-yl)propanamido)propanoic acid TFAsalt - ≥95% , CAS No.16874-75-2(free)

CAS: 16874-75-2(free) Cat. No.: A695387 Molecular Weight: 226.23(free)
AVAILABLE TO ORDER
GRADE & PURITY ≥95%
Synonyms
H-His-Ala-OH TFA | L-histidyl-L-alanine TFA
Storage
Protected from light,Store at -20°C
Shipped In
Ice chest + Ice pads
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
50mg
A695387-50mg
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.
$89.90
250mg
A695387-250mg
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.

$233.90

$285.90
Save $52.00 (18.19%)
1g
A695387-1g
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.

$632.90

$799.90
Save $167.00 (20.88%)
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Why this grade

≥95% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Protected from light,Store at -20°C Ships Ice chest + Ice pads Check lot-specific COA for exact specifications.

📋

Quality documents

SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.

📚

Literature proof

Cited in 0 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Specifications

Synonyms
H-His-Ala-OH TFA | L-histidyl-L-alanine TFA
Specifications & Purity
≥95%
Storage
Protected from light, Store at -20°C
Shipped In
Ice chest + Ice pads
This product requires cold chain shipping. Ground and other economy services are not available.
Purity
≥95%
Names and Identifiers
Canonical SmilesCC(C(=O)O)NC(=O)C(CC1=CN=CN1)N
IUPAC Name(2S)-2-[[(2S)-2-amino-3-(1H-imidazol-5-yl)propanoyl]amino]propanoic acid
InChIKeyFRJIAZKQGSCKPQ-FSPLSTOPSA-N
INCHI1S/C9H14N4O3/c1-5(9(15)16)13-8(14)7(10)2-6-3-11-4-12-6/h3-5,7H,2,10H2,1H3,(H,11,12)(H,13,14)(H,15,16)/t5-,7-/m0/s1
Molecular Weight 226.23(free)

Documentation

📋 Safety Data Sheet (SDS)

Comprehensive hazard, handling, storage, and regulatory compliance document.

Download SDS →

✅ Certificate of Analysis (COA)

Lot-specific quality data. Enter your lot number to retrieve the exact COA.

Look up COA →

📊 Datasheet

Quick-reference summary of product specifications and applications.

View datasheet →

🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

View spec sheet →

Advanced Data

Taxonomic Classification

Taxonomy Tree

KingdomOrganic compounds
SuperclassOrganic acids and derivatives
ClassCarboxylic acids and derivatives
SubclassAmino acids, peptides, and analogues
Intermediate Tree Nodes Not available
Direct ParentPeptides
Alternative Parents N-acyl-alpha amino acids  Alanine and derivatives  Imidazolyl carboxylic acids and derivatives  Aralkylamines  Heteroaromatic compounds  Amino acids  Propargyl-type 1,3-dipolar organic compounds  Monocarboxylic acids and derivatives  Azacyclic compounds  Carboxylic acids  Carboximidic acids  Carbonyl compounds  Hydrocarbon derivatives  Monoalkylamines  Organic oxides  Organopnictogen compounds  
Molecular FrameworkAromatic heteromonocyclic compounds
Substituents Alpha peptide - N-acyl-alpha-amino acid - N-acyl-alpha amino acid or derivatives - Alanine or derivatives - Alpha-amino acid or derivatives - Imidazolyl carboxylic acid derivative - Aralkylamine - Azole - Imidazole - Heteroaromatic compound - Amino acid or derivatives - Amino acid - Carboximidic acid - Carboximidic acid derivative - Carboxylic acid - Monocarboxylic acid or derivatives - Azacycle - Organoheterocyclic compound - Organic 1,3-dipolar compound - Propargyl-type 1,3-dipolar organic compound - Primary aliphatic amine - Hydrocarbon derivative - Organic oxide - Organic oxygen compound - Organopnictogen compound - Carbonyl group - Organonitrogen compound - Organooxygen compound - Organic nitrogen compound - Primary amine - Amine - Aromatic heteromonocyclic compound
DescriptionThis compound belongs to the class of organic compounds known as peptides. These are compounds containing an amide derived from two or more amino carboxylic acid molecules (the same or different) by formation of a covalent bond from the carbonyl carbon of one to the nitrogen atom of another.
External Descriptors dipeptide
3D Structure
Interactive Chemical Structure Model





Mechanisms of Action
Certificates(CoA,COO,BSE/TSE and Analysis Chart)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:

Find and download the COA for your product by matching the lot number on the packaging.

3 results found

Lot NumberCertificate TypeDateItem
C2606329Certificate of AnalysisDec 10, 2025 A695387
C2606330Certificate of AnalysisDec 10, 2025 A695387
C2606331Certificate of AnalysisDec 10, 2025 A695387
Chemical and Physical Properties
SensitivityLight sensitive;Heat sensitive
Molecular Weight226.230 g/mol
XLogP3-3.500
Hydrogen Bond Donor Count4
Hydrogen Bond Acceptor Count5
Rotatable Bond Count5
Exact Mass226.107 Da
Monoisotopic Mass226.107 Da
Topological Polar Surface Area121.000 Ų
Heavy Atom Count16
Formal Charge0
Complexity271.000
Isotope Atom Count0
Defined Atom Stereocenter Count2
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
The total count of all stereochemical bonds0
Covalently-Bonded Unit Count1
Solution Calculators
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