3,3'-DIMETHYLNAPHTHIDINE

Description Sources

Product Name: 3,3'-DIMETHYLNAPHTHIDINE
CAS No.: 13138-48-2
Chemical Name: 3,3'-DIMETHYLNAPHTHIDINE
Synonyms: Einecs 236-069-0;3,3-DIMETHYLNAPHTHIDINE;3,3'-DIMETHYLNAPHTHIDINE;3,3' -dimethylbipyridine;3,3'-DIMETHYLNAPHTHIDINE;3 3-DIMETHYLNAPHTHIDINE 98%;3 3'-DIMETHYLNAPHTHIDINE REDOX IND. &;3,3'-DIMETHYLNAPHTHIDINE METAL INDICATOR;3,3-Dimethylnaphthidine extrapure AR, 98%;4,4'-DIAMINO-3,3'-DIMETHYL-1,1'-BINAPHTHYL
CBNumber: CB4439046
Molecular Formula: C22H20N2
Formula Weight: 312.41
MOL File: 13138-48-2.mol

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3,3'-DIMETHYLNAPHTHIDINE Property

Melting point:: 232 °C
Boiling point:: 479.3±40.0 °C(Predicted)
Density: 1.201±0.06 g/cm3(Predicted)
storage temp.: Store below +30°C.
Water Solubility: Slightly soluble in water
form: powder to crystal
pka: 4.79±0.10(Predicted)
color: White to Gray to Brown
BRN: 2152306
CAS DataBase Reference: 13138-48-2(CAS DataBase Reference)

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Safety

Hazard Codes: Xi
Risk Statements: 36/37/38
Safety Statements: 26-37/39
WGK Germany: 3
HS Code: 2921 59 90

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

Precautionary statements

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P280Wear protective gloves/protective clothing/eye protection/face protection.

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: 1.03122
Product name: 3,3′-Dimethylnaphthidine
Packaging: 1g
Price: $767
Updated: 2024/03/01

TCI Chemical

Product number: D0754
Product name: 3,3'-Dimethylnaphthidine [for Colorimetric Determination of Cl in Water]
Purity: >97.0%(T)
Packaging: 1g
Price: $247
Updated: 2024/03/01

TCI Chemical

Product number: D0754
Product name: 3,3'-Dimethylnaphthidine [for Colorimetric Determination of Cl in Water]
Purity: >97.0%(T)
Packaging: 5g
Price: $789
Updated: 2024/03/01

TRC

Product number: D461378
Product name: 3,3''-Dimethylnaphthidine
Packaging: 50mg
Price: $110
Updated: 2021/12/16

TRC

Product number: D461378
Product name: 3,3''-Dimethylnaphthidine
Packaging: 100mg
Price: $155
Updated: 2021/12/16

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3,3'-DIMETHYLNAPHTHIDINE Chemical Properties,Usage,Production

Description

3, 3-Dimethylnaphthidine is a polycyclic aromatic hydrocarbon, being one kind of dimethylnaphthidine isomers. It is a useful indicator for metal titration (for example, the titration of aluminum using EDTA method, determination of vanadium). It has also been used for the photometric determination of small amount of oxygen as well as chlorine in water.

Sources

https://en.wikipedia.org/wiki/2,6-Dimethylnaphthalene
https://www.sigmaaldrich.com/catalog/product/aldrich/358932?lang=zh&region=CN
http://www.titrations.info/EDTA-titration-aluminum
http://pubs.rsc.org/en/content/articlehtml/1971/an/an9719600591
http://pubs.rsc.org/en/content/articlehtml/1968/an/an9689300142
https://pubs.acs.org/doi/pdf/10.1021/ac60088a056

Purification Methods

Recrystallise the naphthidine from EtOH or pet ether (b 60-80o). [Beilstein 13 IV 493.]

3,3'-DIMETHYLNAPHTHIDINE Preparation Products And Raw materials

Raw materials

Preparation Products

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3,3'-DIMETHYLNAPHTHIDINE Suppliers

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13138-48-2, 3,3'-DIMETHYLNAPHTHIDINERelated Search:

1-AMINO-2-METHYLNAPHTHALENE 1,1'-BINAPHTHYL 3,3'-DIMETHYL-NAPHTHIDINE-DISULFONIC ACID naphthidine 3,3'-DIMETHYLNAPHTHIDINE O-Tolidine 3'-METHYL-BIPHENYL-4-YLAMINE 1-PHENYLNAPHTHALENE 1,3-DIMETHYLNAPHTHALENE 4-AMINO-3-METHYLBIPHENYL

3,3'-DIMETHYLNAPHTHIDINE

3,3-DIMETHYLNAPHTHIDINE

3,3'-DIMETHYL-(1,1'-BINAPHTHALENE)-4,4'-DIAMINE

4,4'-DIAMINO-3,3'-DIMETHYL-1,1'-BINAPHTHYL

3,3-Dimethylnaphthidine (for colorimetric detemination of Cl in water)

1,1-Binaphthalene-4,4-diamine, 3,3-dimethyl-

4 4-DIAMINO-3 3-DIMETHYL-1,1-BINAPHTHYL 98%

3,3-DIMETHYLNAPHTHIDINE [FOR COLORIMETRIC DETERMINATION OF CL IN WATER] 97+%

3,3-DIMETHYLNAPHTHIDINE METAL (PM) INDICATOR

3 3-DIMETHYLNAPHTHIDINE 98%

3,3'-Dimethylnaphthidine [for Colorimetric Determination of Cl in Water]

3 3'-DIMETHYLNAPHTHIDINE REDOX IND. &

3,3'-DIMETHYLNAPHTHIDINE INDICATOR FOR M ETAL TITRATION

Einecs 236-069-0

3,3'-DIMETHYLNAPHTHIDINE, REDOX IND. FOR COMPLEXOMETRY

3,3′-Dimethylnaphthidine,4,4′-Diamino-3,3′-dimethyl-1,1′-binaphthyl

3,3'-DIMETHYLNAPHTHIDINE METAL INDICATOR

3,3-DiMethyl-[1,1'-binaphthalene]-4,4(3H)-diaMine

3,3'-Dimethylnaphthidine[forColorimetricDeterminationofClinWater]&gt

4-(4-amino-3-methylnaphthalen-1-yl)-2-methylnaphthalen-1-amine

3,3-Dimethylnaphthidine extrapure AR, 98%

3,3' -dimethylbipyridine

3,3'-DIMETHYLNAPHTHIDINE

3,3'-Dimethyl-[1,1'-binaphthalene]-4,4'-diamine

3,3'-Dimethylnaphthidine [for Colorimetric Determination of Cl in Water

13138-48-2

C22H20N2