| Identification | More | [Name]
4-(2-THIAZOLYLAZO)RESORCINOL | [CAS]
2246-46-0 | [Synonyms]
2-(2,4-DIHYDROXYPHENYLAZO)THIAZOLE
4-(2-THIAZOLYLAZO)RESORCINOL
4-(2-THIAZOYLAZO)RESORCINOL
TAR
3-Benzenediol,4-(2-thiazolylazo)-1
4-(2-thiazolylazo)-3-benzenediol
4-(thiazol-2-ylazo)resorcinol
TAR [=4-(2-Thiazolylazo)resorcinol] [Metal indicator and spectrophotometric reagent for transition metals]
2-(2,4-Dihydroxyphenylazo)thiazole, TAR
4-(2-Thiazolylazo)-1,3-benzenediol
4-(Thiazole-2-ylazo)resorcinol | [EINECS(EC#)]
218-836-1 | [Molecular Formula]
C9H7N3O2S | [MDL Number]
MFCD00005322 | [Molecular Weight]
221.24 | [MOL File]
2246-46-0.mol |
| Chemical Properties | Back Directory | [Melting point ]
211 °C (dec.)(lit.) | [Boiling point ]
434.5±38.0 °C(Predicted) | [density ]
1.53±0.1 g/cm3(Predicted) | [solubility ]
almost transparency in hot EtOH50vol% | [form ]
powder to crystal | [pka]
7.99±0.35(Predicted) | [color ]
Light yellow to Brown | [BRN ]
204257 | [Dielectric constant]
4.0（Ambient） | [Uses]
Used in treatment of psoriasis. | [CAS DataBase Reference]
2246-46-0(CAS DataBase Reference) |
| Safety Data | Back Directory | [Hazard Codes ]
Xi | [Risk Statements ]
R36/37/38:Irritating to eyes, respiratory system and skin . | [Safety Statements ]
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36:Wear suitable protective clothing . | [WGK Germany ]
3
| [HS Code ]
2934.10.2000 |
| Questions And Answer | Back Directory | [Description]
A dark, viscous,usually pungent substance, tar is derived from the destructive distillation of various organic compounds such as wood,coal, or shale,that is used for various industrial purposes.
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| Hazard Information | Back Directory | [Purification Methods]
Dissolve it in aqueous alkali, extract it with diethyl ether, and re-precipitate it with dilute HCl. The purity is checked by TLC on silica gel using pet ether/diethyl ether/EtOH (10:10:1) as the mobile phase. It complexes with Cu2+ (pH 3-4), Co2+ and Ni2+ (pH 7) and Zn2+ , andCd2+ (pH 8.4). [Beilstein 27 III/IV 5988.] |
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| Company Name: |
Alfa Aesar
|
| Tel: |
400-6106006 |
| Website: |
http://chemicals.thermofisher.cn |
| Company Name: |
Energy Chemical
|
| Tel: |
021-021-58432009 400-005-6266 |
| Website: |
http://www.energy-chemical.com |
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