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4-Iodo-2-nitroaniline

CAS No.
20691-72-9
Chemical Name:
4-Iodo-2-nitroaniline
Synonyms
4-Iodo-2-nitroaniline;4-IODO-2-NITROANILINE 97;4-Iodo-2-nitrophenylamine;4-Iodo-2-nitrobenzenamine;4-Iodo-2-nitroaniline 98%;2-Amino-5-iodonitrobenzene;Benzenamine, 4-iodo-2-nitro-;4-Iodo-2-nitroaniline;4-Iodo-2-nitroaniline ISO 9001:2015 REACH
CBNumber:
CB5498903
Molecular Formula:
C6H5IN2O2
Molecular Weight:
264.02
MDL Number:
MFCD06808526
MOL File:
20691-72-9.mol
MSDS File:
SDS
Last updated:2026-05-28 03:45:26

4-Iodo-2-nitroaniline Properties

Melting point 120-123 °C (lit.)
Boiling point 352.9±27.0 °C(Predicted)
Density 2.101±0.06 g/cm3(Predicted)
storage temp. Keep in dark place,Inert atmosphere,Room temperature
solubility Chloroform (Slightly), Methanol (Slightly)
form Solid
pka -1.19±0.10(Predicted)
color Dark Red to Dark Brown
Stability Air Sensitive
InChI InChI=1S/C6H5IN2O2/c7-4-1-2-5(8)6(3-4)9(10)11/h1-3H,8H2
InChIKey QVCRSYXVWPPBFJ-UHFFFAOYSA-N
SMILES C1(N)=CC=C(I)C=C1[N+]([O-])=O
UNSPSC Code 12352100
NACRES NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H302-H317
Precautionary statements  P280-P301+P312+P330-P302+P352
PPE dust mask type N95 (US), Eyeshields, Faceshields, Gloves
Hazard Codes  Xn
Risk Statements  22-43
Safety Statements  36/37
WGK Germany  2
HS Code  2921490090
Storage Class 11 - Combustible Solids
Hazard Classifications Acute Tox. 4 Oral
Skin Sens. 1
NFPA 704
0
2 0

4-Iodo-2-nitroaniline price More Price(53)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 654108 4-Iodo-2-nitroaniline 97% 20691-72-9 10g $404 2023-06-20 Buy
TCI Chemical I1029 4-Iodo-2-nitroaniline >98.0%(GC) 20691-72-9 1g $29 2026-04-30 Buy
TCI Chemical I1029 4-Iodo-2-nitroaniline >98.0%(GC) 20691-72-9 5g $100 2026-04-30 Buy
TRC TRC-I737143-50MG 4-Iodo-2-nitroaniline 20691-72-9 50mg $72 2026-06-03 Buy
TRC TRC-I737143-10MG 4-Iodo-2-nitroaniline 20691-72-9 10mg $59 2026-06-03 Buy
Product number Packaging Price Buy
654108 10g $404 Buy
I1029 1g $29 Buy
I1029 5g $100 Buy
TRC-I737143-50MG 50mg $72 Buy
TRC-I737143-10MG 10mg $59 Buy

4-Iodo-2-nitroaniline Chemical Properties, Uses, Production

Uses

4-Iodo-2-nitroaniline can be used in organic synthesis.

Synthesis

2-Nitroaniline

88-74-4

4-Iodo-2-nitroaniline

20691-72-9

The general procedure for the synthesis of 4-iodo-2-nitroaniline from 2-nitroaniline is as follows: iodination in the presence of Na2SO3 (typical procedure). To a 100 mL round bottom flask was added a solution of 3 mmol 2-nitroaniline in 10 mL acetic acid and a solution of KI3 and Na2SO3 prepared in advance by adding 3 mmol iodine and 3 mmol Na2SO3 to the solution. A solution of 3 mmol potassium iodide in 3 mL of water was quickly added. At the same time, a solution of 3 mmol NaIO4 in 5 mL of water was added and 0.5 mL of sulfuric acid was quickly added using a pressure-balanced dropping funnel. The reaction mixture was stirred at 25 °C and the reaction progress was monitored by thin layer chromatography (TLC). Upon completion of the reaction, the mixture was poured into ice-cold water and the solid product, 4-iodo-2-nitroaniline, was isolated by vacuum filtration, washed twice with deionized water and dried under appropriate conditions.

References

[1] Monatshefte fur Chemie, 2002, vol. 133, # 10, p. 1325 - 1330
[2] Tetrahedron Letters, 2006, vol. 47, # 28, p. 4793 - 4796
[3] Russian Journal of Organic Chemistry, 2016, vol. 52, # 3, p. 433 - 436
[4] Zh. Org. Khim., 2016, vol. 52, # 3, p. 433 - 436,4
[5] Tetrahedron, 2003, vol. 59, # 14, p. 2497 - 2518

Global Suppliers ( 154)
Supplier Tel Email Country ProdList Advantage
Shanghai Hongle Biotechnology Co., Ltd 021-56145923; 4001631568 sales@honglebiotech.com China 1036 58
Shanghai Boyle Chemical Co., Ltd. 021-50182298 021-50180596 sales@boylechem.com China 2202 55
Energy Chemical 400-0056266 sales8178@energy-chemical.com China 44850 61
JinYan Chemicals(ShangHai) Co.,Ltd. 13817811078 sales@jingyan-chemical.com China 9963 60
Shanghai Hanhong Scientific Co.,Ltd. 021-54306202 13764082696 info@hanhongsci.com China 42917 64
Shandong Xiya Chemical Co., Ltd 13355009207 13355009207 3007715519@qq.com China 18722 57
Syntechem Co.,Ltd info@syntechem.com China 12973 57
Zhangjiagang Specom Biochemical Co., Ltd. 512-0512-58992291,58992287 18606280718 admin@spbiochem.com China 306 62
Beijing Yisiyan Technology Research Center 010-56645598 13366904824; bjkaida@163.com China 1596 59
Shanghai T&W Pharmaceutical Co., Ltd. +86 21 61551611 China 9874 58

View Latest Price from 4-Iodo-2-nitroaniline manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
2-Iodo-4-nitroaniline pictures 2026-09-14 2-Iodo-4-nitroaniline
20691-72-9
10g 99% 50mt/year Jinan Finer Chemical Co., Ltd
4-Iodo-2-nitroaniline pictures 2019-12-26 4-Iodo-2-nitroaniline
20691-72-9
$6.60 1KG 97%-99% 1kg-1000kg Career Henan Chemical Co

4-Iodo-2-nitroaniline Spectrum

4-Iodo-2-nitrophenylamine 2-Amino-5-iodonitrobenzene 4-Iodo-2-nitroaniline 98% 4-Iodo-2-nitroaniline 4-Iodo-2-nitroaniline 4-IODO-2-NITROANILINE 97 Benzenamine, 4-iodo-2-nitro- 4-Iodo-2-nitroaniline ISO 9001:2015 REACH 4-Iodo-2-nitrobenzenamine 20691-72-9