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88522-63-8

5-methyl-1H-indazole-4,7-dione is a chemical compound with the molecular formula C8H6N2O2. It is a derivative of indazole, a heterocyclic aromatic organic compound consisting of a benzene ring fused to a pyrazole ring. The "5-methyl" prefix indicates that there is a methyl group (-CH3) attached to the 5th carbon of the indazole ring. The compound is characterized by two carbonyl groups (C=O) at the 4th and 7th positions, which contribute to its reactivity and potential applications in various chemical and pharmaceutical processes. 5-methyl-1H-indazole-4,7-dione is often used as an intermediate in the synthesis of various pharmaceuticals and agrochemicals, due to its unique structure and reactivity.

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  • 88522-63-8 Structure

  • Basic information

    1. Product Name: 5-methyl-1H-indazole-4,7-dione
    2. Synonyms:
    3. CAS NO:88522-63-8
    4. Molecular Formula: C8H6N2O2
    5. Molecular Weight: 162.1454
    6. EINECS: N/A
    7. Product Categories: N/A
    8. Mol File: 88522-63-8.mol

  • Chemical Properties

    1. Melting Point: N/A
    2. Boiling Point: 408.1°C at 760 mmHg
    3. Flash Point: 202.7°C
    4. Appearance: N/A
    5. Density: 1.446g/cm3
    6. Vapor Pressure: 7.19E-07mmHg at 25°C
    7. Refractive Index: 1.635
    8. Storage Temp.: N/A
    9. Solubility: N/A
    10. CAS DataBase Reference: 5-methyl-1H-indazole-4,7-dione(CAS DataBase Reference)
    11. NIST Chemistry Reference: 5-methyl-1H-indazole-4,7-dione(88522-63-8)
    12. EPA Substance Registry System: 5-methyl-1H-indazole-4,7-dione(88522-63-8)

  • Safety Data

    1. Hazard Codes: N/A
    2. Statements: N/A
    3. Safety Statements: N/A
    4. WGK Germany:
    5. RTECS:
    6. HazardClass: N/A
    7. PackingGroup: N/A
    8. Hazardous Substances Data: 88522-63-8(Hazardous Substances Data)

88522-63-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 88522-63-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,8,5,2 and 2 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 88522-63:
(7*8)+(6*8)+(5*5)+(4*2)+(3*2)+(2*6)+(1*3)=158
158 % 10 = 8
So 88522-63-8 is a valid CAS Registry Number.

88522-63-8SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 13, 2017

Revision Date: Aug 13, 2017

1.Identification

1.1 GHS Product identifier

Product name 5-methyl-1H-benzimidazole-6-carbonitrile

1.2 Other means of identification

Product number -
Other names 1h-benzimidazole-6-carbonitrile,5-methyl

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:88522-63-8 SDS

88522-63-8Downstream Products

88522-63-8Relevant articles and documents

NEW METHODS AND REAGENTS IN ORGANIC SYNTHESIS. 87. REACTION OF TRIMETHYLSILYLDIAZOMETHANE WITH QUINONES

Aoyama, Toyohiko,Nakano, Takao,Nishigaki, Satoshi,Shioiri, Takayuki

, p. 375 - 379 (2007/10/02)

Reaction of trimethylsilyldiazomethane with various quinones affords indazoles 2, 2-substituted 3-trimethylsilylmethyl-1,4-quinones 3, silylcyclopropanes 4, and trimethylsilylmethylenedioxy derivatives 5, depending upon substrates.

Chemical and X-Ray Crystallographic Characterization of the Reaction Products in the 1,3-Dipolar Cycloaddition of Diazomethane to p-Toluquinone

Conway, Gregory A.,Loeffler, Larry J.

, p. 1315 - 1320 (2007/10/02)

The product 2 in the 1,3-dipolar cycloaddition of one equivalent of diazomethane to p-toluquinone (1) was determined by 250 MHz nmr spectra to be approximately 85percent 6-methyl-1-H-indazole-4,7-dione (2b).X-ray crystallographic analysis was employed in the characterization of 1,6-dimethyl-1-H-indazole-4,7-dione (4a), which was the major 1-N-methyl regioisomer in the methylation of the cycloadditon mixture 2 with diazomethane.Methylation of the cycloaddition product 2 with diazomethane also provided a regioisomeric mixture of the 2-N-methyl derivatives 5.This mixture was synthesized for characterization by an independent method which utilized the cycloaddition of 3-methylsydnone (10) to toluquinone (1). 1,5,6-Trimethyl-1-H-indazole-4,7-dione (9) was found to be a minor product in the reaction of diazomethane with the cycloaddition product 2.

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