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4-NITROAZOBENZENE TECH. 90

4-NITROAZOBENZENE TECH. 90 Structure
4-NITROAZOBENZENE TECH. 90 structure
CAS No.
2491-52-3
Chemical Name:
4-NITROAZOBENZENE TECH. 90
Synonyms
4-nitro-azobenzen;p-Nitroazobenzene;Azobenzene, 4-nitro-;(4-nitrophenyl)phenyl-diazen;4-NITROAZOBENZENE TECH. 90;(4-nitrophenyl)phenyldiazene;4-NITROAZOBENZENE, TECH., 90%;(4-Nitro-phenyl)-phenyl-diazene;Diazene, 1-(4-nitrophenyl)-2-phenyl-;(E)-1-(4-Nitrophenyl)-2-phenyldiazene
CBNumber:
CB4498971
Molecular Formula:
C12H9N3O2
Molecular Weight:
227.22
MDL Number:
MFCD00007309
MOL File:
2491-52-3.mol
TDS File:
TDS
Last updated:2026-04-10 10:27:16
Product description Number Pack Size Price
4-Nitroazobenzene technical grade, 90% 159697 5g $239
4-​Nitroazobenzene N901108 500mg $70
4-Nitroazobenzene,suitableforHematology&Histology,≥89%(HPLC),Technicalgrade ≥89%(HPLC) 41865 5G $244.61
4-NITROAZOBENZENE 90.00% CHM0292185 25G $1603.14
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4-NITROAZOBENZENE TECH. 90 Properties

Melting point 132-134 °C(lit.)
Boiling point 368.92°C (rough estimate)
Density 1.2476 (rough estimate)
refractive index 1.5700 (estimate)
Water Solubility 636.2ug/L(25 ºC)
Henry's Law Constant 1.8×101 mol/(m3Pa) at 25℃, Ebert et al. (2023)
EWG's Food Scores 1
FDA UNII P8P9OZE3IH

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictogramsGHS hazard pictograms
GHS07,GHS08
Signal word  Warning
Hazard statements  H302+H312+H332-H315-H319-H335-H351
Precautionary statements  P280-P301+P312-P302+P352+P312-P304+P340+P312-P305+P351+P338-P308+P313
Hazard Codes  Xn
Risk Statements  20/21/22-36/37/38-40
Safety Statements  26-27-36/37/39
WGK Germany  3
RTECS  CN2710000

4-NITROAZOBENZENE TECH. 90 price More Price(4)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 159697 4-Nitroazobenzene technical grade, 90% 2491-52-3 5g $239 2022-05-15 Buy
TRC N901108 4-​Nitroazobenzene 2491-52-3 500mg $70 2021-12-16 Buy
Chem-Impex 41865 4-Nitroazobenzene,suitableforHematology&Histology,≥89%(HPLC),Technicalgrade ≥89%(HPLC) 2491-52-3 5G $244.61 2021-12-16 Buy
American Custom Chemicals Corporation CHM0292185 4-NITROAZOBENZENE 90.00% 2491-52-3 25G $1603.14 2021-12-16 Buy
Product number Packaging Price Buy
159697 5g $239 Buy
N901108 500mg $70 Buy
41865 5G $244.61 Buy
CHM0292185 25G $1603.14 Buy

4-NITROAZOBENZENE TECH. 90 Chemical Properties,Uses,Production

Uses

4-Nitroazobenzene is a stain/dye. It can be used in the cobalt(III)-catalyzed synthesis of indazoles and furans by C-H bond functionalization/addn./cyclization cascades.

4-NITROAZOBENZENE TECH. 90 synthesis

34139-26-9
2491-52-3
Synthesis of 4-NITROAZOBENZENE TECH. 90 from Hydrazine, 1-(4-nitrophenyl)-2-phenyl-

4-NITROAZOBENZENE TECH. 90 Preparation Products And Raw materials

Raw materials

Hydrazine, 1-(4-nitrophenyl)-2-phenyl-

Preparation Products

4-NITROAZOBENZENE TECH. 90 Suppliers

Global( 12)Suppliers
Supplier Tel Email Country ProdList Advantage
ShenZhen Trendseen Biological Technology Co.,Ltd. 		13417589054 trendseenbio@gmail.com China 11681 58
Aladdin Scientific 		tp@aladdinsci.com United States 52923 58
Shaanxi Dideu New Materials Co. Ltd 		+86-18192503167 18192503167; 1036@dideu.com China 7917 58
DAYANG CHEM (HANGZHOU) CO.,LTD 		+86-88938639 +86-17705817739 info@dycnchem.com China 53802 58
Energy Chemical 021-58432009 400-005-6266 marketing1@energy-chemical.com China 44896 58
Shaanxi DIDU pharmaceutical and Chemical Co., Ltd 029-029-029-81148696 18161915376 1040@dideu.com China 10000 58
ShenZhen Trendseen Biological Technology Co.,Ltd. 13417589054 trendseenbio@gmail.com China 9069 58
Supplier Advantage
ShenZhen Trendseen Biological Technology Co.,Ltd. 		58
Aladdin Scientific 		58
Shaanxi Dideu New Materials Co. Ltd 		58
DAYANG CHEM (HANGZHOU) CO.,LTD 		58
Energy Chemical 58
Shaanxi DIDU pharmaceutical and Chemical Co., Ltd 58
ShenZhen Trendseen Biological Technology Co.,Ltd. 58

View Lastest Price from 4-NITROAZOBENZENE TECH. 90 manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
4-NITROAZOBENZENE TECH. 90 pictures 2025-12-01 4-NITROAZOBENZENE TECH. 90
2491-52-3
 US $0.00 / kg 1kg 90% 10000kgs Shaanxi Dideu New Materials Co. Ltd

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4-NITROAZOBENZENE TECH. 90 4-NITROAZOBENZENE, TECH., 90% (4-nitrophenyl)phenyldiazene (4-Nitro-phenyl)-phenyl-diazene (E)-1-(4-Nitrophenyl)-2-phenyldiazene 4-nitro-azobenzen Azobenzene, 4-nitro- p-Nitroazobenzene (4-nitrophenyl)phenyl-diazen Diazene, 1-(4-nitrophenyl)-2-phenyl- 4-Nitroazobenzene technical grade, 90% 2491-52-3 O2NC6H4NNC6H5 C6H5NNC6H4NO2 N Stains and Dyes Stains&Dyes, A to