78431-21-7

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Basic information

Product Name: 5-CHLORO-1,3-DIMETHYL-4-(2-PHENYLDIAZ-1-ENYL)-1H-PYRAZOLE
Synonyms: 5-CHLORO-1,3-DIMETHYL-4-PHENYLAZOPYRAZOLE;5-CHLORO-1,3-DIMETHYL-4-(2-PHENYLDIAZ-1-ENYL)-1H-PYRAZOLE;5-Chloro-1,3-dimethyl-4-phenylazo-1H-pyrazole
CAS NO:78431-21-7
Molecular Formula: C₁₁H₁₁ClN₄
Molecular Weight: 234.68
EINECS: N/A
Product Categories: N/A
Mol File: 78431-21-7.mol
Article Data: 1

Chemical Properties

Melting Point: 44 °C
Boiling Point: 382.9°C at 760 mmHg
Flash Point: 185.3°C
Appearance: /
Density: 1.26g/cm³
Vapor Pressure: 1.01E-05mmHg at 25°C
Refractive Index: 1.625
Storage Temp.: N/A
Solubility: N/A
CAS DataBase Reference: 5-CHLORO-1,3-DIMETHYL-4-(2-PHENYLDIAZ-1-ENYL)-1H-PYRAZOLE(CAS DataBase Reference)
NIST Chemistry Reference: 5-CHLORO-1,3-DIMETHYL-4-(2-PHENYLDIAZ-1-ENYL)-1H-PYRAZOLE(78431-21-7)
EPA Substance Registry System: 5-CHLORO-1,3-DIMETHYL-4-(2-PHENYLDIAZ-1-ENYL)-1H-PYRAZOLE(78431-21-7)

Safety Data

Hazard Codes: Xn:Harmful;
Statements: R20/21/22:Harmful by inhalation, in contact with skin and if swallowed.; R36/37/38:Irritating to eyes, respiratory system
Safety Statements: S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.; S36/37/39:Wear suitabl
WGK Germany:
RTECS:
HazardClass: N/A
PackingGroup: N/A
Hazardous Substances Data: 78431-21-7(Hazardous Substances Data)

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1H-Pyrazole,5-chloro-1,3-dimethyl-4-(2-phenyldiazenyl)-
Cas No: 78431-21-7
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5
Hangzhou J&H Chemical Co., Ltd.
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5-CHLORO-1,3-DIMETHYL-4-(2-PHENYLDIAZ-1-ENYL)-1H-PYRAZOLE
Cas No: 78431-21-7
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Finetech Industry Limited
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1H-Pyrazole,5-chloro-1,3-dimethyl-4-(2-phenyldiazenyl)-
Cas No: 78431-21-7
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Tianjin SPHINX SCIENTIFIC LAB.
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78431-21-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 78431-21-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,8,4,3 and 1 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 78431-21:
(7*7)+(6*8)+(5*4)+(4*3)+(3*1)+(2*2)+(1*1)=137
137 % 10 = 7
So 78431-21-7 is a valid CAS Registry Number.

InChI:InChI=1/C11H11ClN4/c1-8-10(11(12)16(2)15-8)14-13-9-6-4-3-5-7-9/h3-7H,1-2H3/b14-13+

78431-21-7SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 14, 2017

Revision Date: Aug 14, 2017

1.Identification

1.1 GHS Product identifier

Product name	(5-chloro-1,3-dimethylpyrazol-4-yl)-phenyldiazene

1.2 Other means of identification

Product number	-
Other names	5-chloro-1,3-dimethyl-4-phenyldiazenyl-1,2-diazacyclopenta-2,4-diene

1.3 Recommended use of the chemical and restrictions on use

Identified uses	For industry use only.
Uses advised against	no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number	-
Service hours	Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:78431-21-7 SDS

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78431-21-7Relevant articles and documents

SYNTHESES AND CHELATING PROPERTIES OF AZOTHIOPYRINES

Tanaka, Tomoo,Tanaka, Kuniyuki

, p. 445 - 450 (2007/10/02)

Azothiopyrine and methyl-azothiopyrine were synthesized as new chelating agents which form stable chelates with some metal ions at the mercapto and azo groups.Azothiopyrines are unusually stable in solution because of a strong intramolecular hydrogen bond

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