131377 Sigma-Aldrich



  • CAS Number 66-71-7

  • Empirical Formula (Hill Notation) C12H8N2

  • Molecular Weight 180.21

  •  EC Number 200-629-2

  •  MDL number MFCD00011678

  •  eCl@ss 39210124

  •  PubChem Substance ID 24848008

  •  NACRES NA.22



Related Categories Building Blocks, Chemical Synthesis, Heterocyclic Building Blocks, N-Containing, Other Heterocyclic Building Blocks More...
Quality Level   200
assay   ≥99%
mp   114-117 °C (lit.)
SMILES string   c1cnc2c(c1)ccc3cccnc23
InChI   1S/C12H8N2/c1-3-9-5-6-10-4-2-8-14-12(10)11(9)13-7-1/h1-8H
Gene Information   human ... FNTA(2339)



1,10-Phenanthroline can be used as:
• A cathode buffer layer to improve the efficiency of organic solar cells.
• A conventional chelator to study its efficacy in Fenton′s reaction-luminol chemiluminescence system.
• A ligand in mild, copper (II)-catalyzed cross-coupling of organoboronic acids and sulfinate salts, leading to aryl- and alkenylsulfones.
• A versatile ligand employed in the spectrophotometric determination of metals and photocatalytic reduction of carbon dioxide.
• A building block for metallomacrocycles.


2.5, 5 g in glass bottle

25, 100 g in poly bottle

Safety & Documentation

Safety Information

Signal word 
Hazard statements 
UN2811 - class 6.1 - PG 3 - EHS - Toxic solids, organic, n.o.s., HI: all
WGK Germany 
Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable


Certificate of Analysis (COA)

Please Enter a Lot Number

Certificate of Origin (COO)

Please Enter a Lot Number

Frequently Asked Questions

Which document(s) contains shelf-life or expiration date information for a given product?
If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.
How do I get lot-specific information or a Certificate of Analysis?
The lot specific COA document can be found by entering the lot number above under the "Documents" section.
How do I find price and availability?
There are several ways to find pricing and availability for our products. Once you log onto our website, you will find the price and availability displayed on the product detail page. You can contact any of our Customer Sales and Service offices to receive a quote. USA customers: 1-800-325-3010 or view local office numbers.
What is the Department of Transportation shipping information for this product?
Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.
What is the difference between1,10-Phenanthroline Products 131377 and 320056?
Product 320056 is the monohydrate form and 131377 has no specification on water content. Both can make a copper complex, since they are the same ligand.
Can Product 131377, 1,10-Phenanthroline, be used for cell culture?
Sigma-Aldrich does not have any references for the use of 1,10-phenanthroline in cell culture.
What is the solubility of Product 131377, 1,10-Phenanthroline?
1,10-Phenanthroline is soluble in methanol at 500 micrograms per mL, or in water at 3 milligrams per mL. It is also soluble in benzene and acetone.
My question is not addressed here, how can I contact Technical Service for assistance?
Ask a Scientist here.
My question is not addressed here, how can I contact Technical Service for assistance?
Ask a Scientist here.
Show more questions
Protocols & Articles
Peer-Reviewed Papers


Related Products

Technical Service:

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Bulk Ordering & Pricing:

Need larger quantities for your development, manufacturing or research applications?