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2,3-Dichloro-5,6-dicyano-p-benzoquinone_Molecular_structure_CAS_84-58-2)
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2,3-Dichloro-5,6-dicyano-p-benzoquinone

Catalog No. D60400 Name Sigma Aldrich
CAS Number 84-58-2 Website http://www.sigmaaldrich.com
M. F. C8Cl2N2O2 Telephone 1-800-521-8956
M. W. 227.0038 Fax
Purity 98% Email
Storage Chembase ID: 77210

SYNONYMS

Title
2,3-二氯-5,6-二氰基对苯醌
IUPAC name
4,5-dichloro-3,6-dioxocyclohexa-1,4-diene-1,2-dicarbonitrile
IUPAC Traditional name
4,5-dichloro-3,6-dioxocyclohexa-1,4-diene-1,2-dicarbonitrile
Synonyms
4,5-二氯-3,6-二氧-1,4-环己二烯-1,2-二甲腈
DDQ
4,5-Dichloro-3,6-dioxo-1,4-cyclohexadiene-1,2-dicarbonitrile

DATABASE IDS

CAS Number 84-58-2
MDL Number MFCD00001593
EC Number 201-542-2
Beilstein Number 747939
PubChem SID 24893996

PROPERTIES

GHS Precautionary statements P301 + P310
RID/ADR UN 3439 6.1/PG 3
Risk Statements 25-29
RTECS GU4825000
Safety Statements 22-24/25-37-45
Storage Temperature 2-8°C
Supplemental Hazard Statements Contact with water liberates toxic gas.
Hazard Class 6.1
UN Number 3439
Packing Group 3
German water hazard class 3
GHS Pictograms GHS06
GHS Signal Word Danger
GHS Hazard statements H301
European Hazard Symbols Toxic Toxic (T)
MSDS Link Download
Personal Protective Equipment Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges
Empirical Formula (Hill Notation) C8Cl2N2O2
Purity 98%
Melting Point 210-215 °C (dec.)(lit.)

DETAILS

Description (English)
Application
Used with Ph3P in an efficient synthesis of 1,2-benzisoxazoles.1
Versatile deprotection reagent for a variety of compounds, such as thioacetals, acetals, and ketals. Useful electron-transfer reagent for synthesis of quinolines from imines and alkynes or alkenes.
Packaging
5, 10, 100 g in glass bottle
Description (简体中文)
Application
多种化合物(例如硫缩醛、缩醛和缩酮)的通用脱保护试剂。可用于通过亚胺和炔烃或烯烃合成喹啉的电子转移试剂。
用于与 Ph3P 高效合成 1 2-苯并异噁唑类化合物。1
包装
5, 10, 100 g in glass bottle

REFERENCES