6-Amino-1-naphthalenesulfonic Acid - ≥96% , CAS No.81-05-0

CAS: 81-05-0 Cat. No.: A137050 Molecular Weight: 223.25 Beilstein Registry Number: 14(3)2245 EC Number: 201-318-4
AVAILABLE TO ORDER
GRADE & PURITY ≥96%
Synonyms
W-104220 | SY050719 | AC-14167 | 6-Amino-1-naphthalenesulfonic acid | 6-Amino-1-naphthalenesulfonic acid, AldrichCPR | EINECS 201-318-4 | 6-NAPHTHYLAMINE-1-SULFONIC ACID | DTXSID10230836 | A840028 | H11791 | Dahl's Acid | 6-aminonaphthalene-1-sulfonic aci
Storage
Store at 2-8°C,Protected from light,Argon charged
Shipped In
Wet ice
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
5g
A137050-5g
6

$14.90

$22.90
Save $8.00 (34.93%)
25g
A137050-25g
5

$30.90

$46.90
Save $16.00 (34.12%)
100g
A137050-100g
5

$94.90

$142.90
Save $48.00 (33.59%)
500g
A137050-500g
1

$355.90

$533.90
Save $178.00 (33.34%)
Enter a quantity for the sizes you want to add.
🧪

Why this grade

≥96% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Store at 2-8°C,Protected from light,Argon charged Ships Wet ice 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 1 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Overview

A product for proteomics research

Specifications

Synonyms
W-104220 | SY050719 | AC-14167 | 6-Amino-1-naphthalenesulfonic acid | 6-Amino-1-naphthalenesulfonic acid, AldrichCPR | EINECS 201-318-4 | 6-NAPHTHYLAMINE-1-SULFONIC ACID | DTXSID10230836 | A840028 | H11791 | Dahl's Acid | 6-aminonaphthalene-1-sulfonic aci
Specifications & Purity
≥96%
Storage
Store at 2-8°C, Protected from light, Argon charged
Shipped In
Wet ice
This product requires cold chain shipping. Ground and other economy services are not available.
Purity
≥96%
Names and Identifiers
Pubchem Sid488183794
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/488183794
Canonical SmilesC1=CC2=C(C=CC(=C2)N)C(=C1)S(=O)(=O)O
IUPAC Name6-aminonaphthalene-1-sulfonic acid
InChIKeyYUNBHHWDQDGWHC-UHFFFAOYSA-N
INCHI1S/C10H9NO3S/c11-8-4-5-9-7(6-8)2-1-3-10(9)15(12,13)14/h1-6H,11H2,(H,12,13,14)
Isomeric SMILES C1=CC2=C(C=CC(=C2)N)C(=C1)S(=O)(=O)O
Molecular Weight 223.25
Beilstein 14(3)2245
Reaxy-Rn 2695332
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=2695332&ln=

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
SuperclassBenzenoids
ClassNaphthalenes
SubclassNaphthalene sulfonic acids and derivatives
Intermediate Tree Nodes Naphthalene sulfonates
Direct Parent1-naphthalene sulfonates
Alternative Parents 1-naphthalene sulfonic acids and derivatives  1-sulfo,2-unsubstituted aromatic compounds  Sulfonyls  Organosulfonic acids  Primary amines  Organopnictogen compounds  Organic oxides  Hydrocarbon derivatives  
Molecular FrameworkAromatic homopolycyclic compounds
Substituents 1-naphthalene sulfonate - 1-naphthalene sulfonic acid or derivatives - Arylsulfonic acid or derivatives - 1-sulfo,2-unsubstituted aromatic compound - Organic sulfonic acid or derivatives - Organosulfonic acid or derivatives - Organosulfonic acid - Sulfonyl - Amine - Hydrocarbon derivative - Organic oxide - Organopnictogen compound - Organic oxygen compound - Primary amine - Organosulfur compound - Organonitrogen compound - Organic nitrogen compound - Aromatic homopolycyclic compound
DescriptionThis compound belongs to the class of organic compounds known as 1-naphthalene sulfonates. These are organic aromatic compounds that contain a naphthalene moiety that carries a sulfonic acid group at the 1-position. Naphthalene is a bicyclic compound that is made up of two fused benzene ring.
External Descriptors Not available
3D Structure
Interactive Chemical Structure Model





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.

8 results found

Lot NumberCertificate TypeDateItem
H2521063Certificate of AnalysisAug 30, 2025 A137050
D2307474Certificate of AnalysisJan 08, 2025 A137050
D2307525Certificate of AnalysisJan 08, 2025 A137050
D2307531Certificate of AnalysisJan 08, 2025 A137050
D2307532Certificate of AnalysisJan 08, 2025 A137050
D2307533Certificate of AnalysisJan 08, 2025 A137050
D2307535Certificate of AnalysisJan 08, 2025 A137050
D2307536Certificate of AnalysisJan 08, 2025 A137050
Chemical and Physical Properties
SensitivityLight sensitive
Boil Point(°C)434.16 °C
Melt Point(°C)173.38°C
Molecular Weight223.250 g/mol
XLogP31.200
Hydrogen Bond Donor Count2
Hydrogen Bond Acceptor Count4
Rotatable Bond Count1
Exact Mass223.03 Da
Monoisotopic Mass223.03 Da
Topological Polar Surface Area88.800 Ų
Heavy Atom Count15
Formal Charge0
Complexity322.000
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
The total count of all stereochemical bonds0
Covalently-Bonded Unit Count1
Citations of This Product
References
1. Zhigang Liu, Shihua Yu, Shuping Xu, Bing Zhao, Weiqing Xu.  (2017)  Ultrasensitive Detection of Capsaicin in Oil for Fast Identification of Illegal Cooking Oil by SERRS.  ACS Omega,      [PMID:31457378] [10.1021/acsomega.7b01457]
Solution Calculators
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