Oil Orange SS , CAS No.2646-17-5

CAS: 2646-17-5 Cat. No.: O1501139 Molecular Weight: 262.31 EC Number: 220-162-8
AVAILABLE TO ORDER
Synonyms
Solvent Orange 2 | 1-(o-Tolylazo)-2-naphthol | SCHEMBL52228 | DTXSID6025808 | E939MCU4ID | Orange OT | (E)-1-(o-tolyldiazenyl)naphthalen-2-ol | 1-[(E)-(2-Methylphenyl)diazenyl]naphthalen-2-ol | NSC-58044 | NSC58044 | NSC 58044 | Lacquer Orange V | Japan O
Storage
Room temperature,Cool
Shipped In
Normal
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
1g
O1501139-1g
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.
$9.90
5g
O1501139-5g
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.
$19.90
Enter a quantity for the sizes you want to add.
🧪

Why this grade

for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Room temperature,Cool Ships Normal 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.

Specifications

Synonyms
Solvent Orange 2 | 1-(o-Tolylazo)-2-naphthol | SCHEMBL52228 | DTXSID6025808 | E939MCU4ID | Orange OT | (E)-1-(o-tolyldiazenyl)naphthalen-2-ol | 1-[(E)-(2-Methylphenyl)diazenyl]naphthalen-2-ol | NSC-58044 | NSC58044 | NSC 58044 | Lacquer Orange V | Japan O
Storage
Room temperature, Cool
Shipped In
Normal
Names and Identifiers
Canonical SmilesCC1=CC=CC=C1N=NC2=C(C=CC3=CC=CC=C32)O
IUPAC Name1-[(2-methylphenyl)diazenyl]naphthalen-2-ol
InChIKeyBQFCCCIRTOLPEF-UHFFFAOYSA-N
INCHI1S/C17H14N2O/c1-12-6-2-5-9-15(12)18-19-17-14-8-4-3-7-13(14)10-11-16(17)20/h2-11,20H,1H3
Isomeric SMILES CC1=CC=CC=C1N=NC2=C(C=CC3=CC=CC=C32)O
RTECS QL5425000
Molecular Weight 262.31
Reaxy-Rn 959684
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=959684&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
SubclassNaphthols and derivatives
Intermediate Tree Nodes Not available
Direct ParentNaphthols and derivatives
Alternative Parents Toluenes  1-hydroxy-2-unsubstituted benzenoids  Azo compounds  Propargyl-type 1,3-dipolar organic compounds  Organooxygen compounds  Hydrocarbon derivatives  
Molecular FrameworkAromatic homopolycyclic compounds
Substituents 2-naphthol - 1-hydroxy-2-unsubstituted benzenoid - Toluene - Phenol - Monocyclic benzene moiety - Azo compound - Organic 1,3-dipolar compound - Propargyl-type 1,3-dipolar organic compound - Organic nitrogen compound - Organic oxygen compound - Hydrocarbon derivative - Organooxygen compound - Organonitrogen compound - Aromatic homopolycyclic compound
DescriptionThis compound belongs to the class of organic compounds known as naphthols and derivatives. These are naphthalene derivatives carrying one or more hydroxyl (-OH) groups at any ring position.
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.

2 results found

Lot NumberCertificate TypeDateItem
J2513799Certificate of AnalysisOct 17, 2025 O1501139
J2509811Certificate of AnalysisOct 10, 2025 O1501139
Chemical and Physical Properties
SolubilityInsoluble in water; Slightly soluble in Benzene,Acetone,Chloroform,Ethanol
Melt Point(°C)128 °C
Molecular Weight262.300 g/mol
XLogP35.000
Hydrogen Bond Donor Count1
Hydrogen Bond Acceptor Count3
Rotatable Bond Count2
Exact Mass262.111 Da
Monoisotopic Mass262.111 Da
Topological Polar Surface Area45.000 Ų
Heavy Atom Count20
Formal Charge0
Complexity344.000
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. Peizhang Zhou, Yuanyang Yan, Jiang Cheng, Cailong Zhou.  (2023)  Directional Self-Transportation of Droplets on Superwetting Wedge-Shaped Surface in Air and Underliquid Environments.  ACS Applied Materials & Interfaces,      [PMID:36740783] [10.1021/acsami.2c21392]
Solution Calculators
Reviews

Customer Reviews

Shall we send you a message when we have discounts available?

Remind me later

Thank you! Please check your email inbox to confirm.

Oops! Notifications are disabled.