201715

Pinacyanol chloride

• Synonym(s): 1,1′-Diethyl-2,2′-carbocyanine chloride, 2,2′-Trimethinequinocyanine chloride, Quinaldine blue
• Empirical Formula (Hill Notation): C₂₅H₂₅ClN₂
• CAS Number: 2768-90-3
• Molecular Weight: 388.93
• EC Number: 220-457-1
• MDL number: MFCD00011974
• UNSPSC Code: 12171500
• PubChem Substance ID: 24852020
• NACRES: NA.47

Properties

• form: powder
• mp: 270 °C (dec.) (lit.)
• λmax: 560 nm (2nd); 604 nm
• ε (extinction coefficient): ≥150000 at 603-609 nm in ethanol at 0.001 g/L; ≥65000 at 559-565 nm in ethanol at 0.001 g/L
• application(s): diagnostic assay manufacturing; hematology; histology
• storage temp.: room temp
• SMILES string: [Cl-].CCN1C(=C\C=C\c2ccc3ccccc3[n+]2CC)\C=Cc4ccccc14
• InChI: 1S/C25H25N2.ClH/c1-3-26-22(18-16-20-10-5-7-14-24(20)26)12-9-13-23-19-17-21-11-6-8-15-25(21)27(23)4-2;/h5-19H,3-4H2,1-2H3;1H/q+1;/p-1
• InChI key: FVMNARAKYNRZID-UHFFFAOYSA-M

Description

Biochem/physiol Actions

Pinacyanol chloride (1, 1-diethyl-2, 2-carbocyanine chloride), also known as quinaldine blue or PIN, belongs to the class of symmetric trimethinecyanine dyes. It is widely used as a histological stain. Pinacyanol chloride is used in the study of bacterial polysaccharides. Pinacyanol chloride exposure induces respiratory immunogenicity. PIN has two absorption maximums at 605nm and 550nm, which are known asα and β bands respectively.

Safety Information

• pictograms: GHS07
• signalword: Warning
• hcodes: H315,H319,H335
• pcodes: P261 - P264 - P271 - P280 - P302 + P352 - P305 + P351 + P338
• Hazard Classifications: Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
• target_organs: Respiratory system
• Storage Class: 11 - Combustible Solids
• wgk_germany: WGK 3
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• ppe: dust mask type N95 (US), Eyeshields, Gloves