Detail of "13556-84-8"
- CAS Number:
- 13556-84-8
- Name:
Diazene,1,2-bis(2-chlorophenyl)-, 1-oxide
- Molecular Structure:
- Formula:
- C12H8 Cl2 N2 O
- Molecular Weight:
- 267.11072
- Synonyms:
- Azoxybenzene,2,2'-dichloro- (6CI,7CI,8CI); Diazene, bis(2-chlorophenyl)-, 1-oxide (9CI);2,2'-Dichloroazoxybenzene; N,N'-Bis(2-chlorophenyl)diazene N-oxide; NSC 83589
- Density:
- 1.33g/cm3
- Boiling Point:
- 409.7°Cat760mmHg
- Flash Point:
- 201.6°C
Diazene,1,2-bis(2-chlorophenyl)-, 1-oxide
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Reference
- Benzidine pigments
- Benzidine pigments. (Color-Chem Ltd., India). Japan. Kokai JP 51097633 27 Aug 1976 Showa, 12 pp. (Japanese). (Japan). CODEN: JKXXAF. CLASS: IC: C09B035-10. APPLICATION: JP 75-22497 25 Feb 1975. DOCUMENT TYPE: Patent CA Section: 40 (Dyes, Fluorescent Whitening Agents, and Photosensitizers) Azoxybenzene derivs. were reduced in 1 step with com. 961-28-4 and 97-36-9 which are cas registry numbers are also used here. NaSH (aq. soln.) in EtOH, MeOH, DMF, morpholine, Me2SO, or iso-BuOH to give hydrazobenzenes which could be used without further purifn. for benzidine-based diazo pigment manuf. For example, 53.4 parts 2,2'-dichloroazoxybenzene [13556-84-8] in MeOH was treated with 85 parts aq. NaSH (35% NaSH, 12% Na2S2O3) over 90 min and refluxed for 7.5 h to give 80% 2,2'-dichlorohydrazobenzene (I) [782-74-1] which was rearranged to benzidine deriv. in usual manner, tetrazotized, and coupled with acetoacetanilide [102-01-2] to give 89% (based on I) C.I. Pigment Yellow 12 [6358-85-6]. .