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ChemicalBook >> CAS DataBase List >>2-Amino-5-nitro-4-picoline

2-Amino-5-nitro-4-picoline

CAS No.
21901-40-6
Chemical Name:
2-Amino-5-nitro-4-picoline
Synonyms
2-AMINO-4-METHYL-5-NITROPYRIDINE;4-methyl-5-nitropyridin-2-amine;2-AMINO-5-NITRO-4-PICOLINE;2-Amino-5-nitro-4-picoline,98%;2-AMiono-4Methyl-5Nitropyridine;4-Methyl-5-nitro-2-pyridinamine;2-Amino-4-Mythyl-5-NitroPyridine;2-Amino-5-nitro-4-methylpyridine;4-Methyl-5-nitropyridine-2-amine;2-Pyridinamine,4-methyl-5-nitro-
CBNumber:
CB0349709
Molecular Formula:
C6H7N3O2
Molecular Weight:
153.14
MDL Number:
MFCD00010692
MOL File:
21901-40-6.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-05-27 17:40:25
Product description Number Pack Size Price
2-Amino-4-methyl-5-nitropyridine 98% 290092 1g $40.7
2-Amino-4-methyl-5-nitropyridine >98.0%(GC)(T) A1638 1g $33
2-Amino-4-methyl-5-nitropyridine >98.0%(GC)(T) A1638 5g $130
4-Methyl-5-nitropyridin-2-amine ≥97% CS-W002060 25g $19
4-Methyl-5-nitropyridin-2-amine ≥97% CS-W002060 100g $29
More product size

2-Amino-5-nitro-4-picoline Properties

Melting point 223-225 °C (lit.)
Boiling point 276.04°C (rough estimate)
Density 1.3682 (rough estimate)
refractive index 1.6500 (estimate)
storage temp. Keep in dark place,Inert atmosphere,Room temperature
solubility Soluble in DMSO.
pka 3.44±0.24(Predicted)
form Powder
color Orange to yellow-brown
BRN 137695
InChI InChI=1S/C6H7N3O2/c1-4-2-6(7)8-3-5(4)9(10)11/h2-3H,1H3,(H2,7,8)
InChIKey GRBBNZYMXKTQAI-UHFFFAOYSA-N
SMILES C1(N)=NC=C([N+]([O-])=O)C(C)=C1
CAS DataBase Reference 21901-40-6(CAS DataBase Reference)
UNSPSC Code 12352100
NACRES NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H315-H319-H335
Precautionary statements  P261-P264-P271-P280-P302+P352-P305+P351+P338
target organs Respiratory system
PPE dust mask type N95 (US), Eyeshields, Gloves
Hazard Codes  Xi,Xn
Risk Statements  36/37/38-20/21/22
Safety Statements  26-37/39-36/37/39-22-36
WGK Germany  3
HazardClass  IRRITANT
HS Code  29333999
Storage Class 11 - Combustible Solids
Hazard Classifications Eye Irrit. 2
Skin Irrit. 2
STOT SE 3
NFPA 704
1
2 0

2-Amino-5-nitro-4-picoline price More Price(91)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 290092 2-Amino-4-methyl-5-nitropyridine 98% 21901-40-6 1g $40.7 2026-04-30 Buy
TCI Chemical A1638 2-Amino-4-methyl-5-nitropyridine >98.0%(GC)(T) 21901-40-6 1g $33 2026-04-30 Buy
TCI Chemical A1638 2-Amino-4-methyl-5-nitropyridine >98.0%(GC)(T) 21901-40-6 5g $130 2026-04-30 Buy
ChemScene CS-W002060 4-Methyl-5-nitropyridin-2-amine ≥97% 21901-40-6 25g $19 2026-06-04 Buy
ChemScene CS-W002060 4-Methyl-5-nitropyridin-2-amine ≥97% 21901-40-6 100g $29 2026-06-04 Buy
Product number Packaging Price Buy
290092 1g $40.7 Buy
A1638 1g $33 Buy
A1638 5g $130 Buy
CS-W002060 25g $19 Buy
CS-W002060 100g $29 Buy

2-Amino-5-nitro-4-picoline Chemical Properties,Uses,Production

Chemical Properties

orange to yellow-brown powder

Uses

2-Amino-4-methyl-5-nitropyridine was used in the preparation of matrix mixture required to study new technical developments for the direct tissue analysis of peptides.

General Description

The crystal structure of 2-amino-4-methyl-5-nitropyridine was elucidated.

Synthesis

4-Methylpyridin-2-amine

695-34-1

2-Amino-5-nitro-4-picoline

21901-40-6

Example 9: Synthesis of 2-(1-aziridinyl)-4-carbamoyl-5-nitropyridine (Compound VI) Reagents and conditions: (i) HNO3/H2SO4; (ii) NaNO2; (iii) POCl3; (iv) Na2Cr2O7; (v) SOCl2/DMF, followed by NH4OH treatment; (vi) aziridine. Synthesis steps for compound 30: 1. cool concentrated sulfuric acid (240 mL) in an ice bath and slowly add raw compound 29 (2-amino-4-methylpyridine, 50 g, 0.462 mol), keeping the temperature at 0°C. 2. slowly add acid mixture prepared from concentrated sulfuric acid (98%, 55 mL) and concentrated nitric acid (72%, 55 mL) in a 1:1 volume ratio. 3. slowly heat to 50°C and react for 24 hours to ensure complete reaction. 4. Pour the reaction solution into 2 L of ice water, adjust the pH to 7 with a strong base, and filter to collect the precipitate. 5. Dry the filter cake to give 54 g of crude product. 6. The by-product 4-methyl-3-nitro-2-aminopyridine was removed by wet distillation and subsequently recrystallized in 95% ethanol to give 33 g of Compound 30 (2-amino-4-methyl-5-nitropyridine) with a melting point of 220-222 °C (Literature value: 220-222 °C). Yield: 46.6%.

References

[1] Patent: EP2366691, 2011, A1. Location in patent: Page/Page column 12-13
[2] Patent: CN105906621, 2016, A. Location in patent: Paragraph 0044
[3] Patent: WO2005/97129, 2005, A2. Location in patent: Page/Page column 176
[4] Patent: WO2012/103806, 2012, A1. Location in patent: Page/Page column 43

Global( 368)Suppliers
Supplier Tel Email Country ProdList Advantage
Henan Fengda Chemical Co., Ltd 		+86-371-86557731 +86-13613820652 info@fdachem.com China 20120 58
Capot Chemical Co.,Ltd. 		+86-（0）57185586718 +86-13336195806 sales@capot.com China 29640 60
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Wuhan Chemwish Technology Co., Ltd 		027-67849912 sales@chemwish.com CHINA 10821 58
CONIER CHEM AND PHARMA LIMITED 		+8618523575427 sales@conier.com China 49979 58

View Lastest Price from 2-Amino-5-nitro-4-picoline manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
2-Amino-5-nitro-4-picoline pictures 2026-07-09 2-Amino-5-nitro-4-picoline
21901-40-6
 $5.00 1KG 98% Henan Fengda Chemical Co., Ltd
2-Amino-5-nitro-4-picoline pictures 2026-06-30 2-Amino-5-nitro-4-picoline
21901-40-6
 1KG 98.0% 10000KGS Shaanxi Dideu New Materials Co. Ltd
2-Amino-5-nitro-4-picoline pictures 2025-11-18 2-Amino-5-nitro-4-picoline
21901-40-6
 $1.10 1g 99.00% 100 Tons min Dideu Industries Group Limited

2-Amino-5-nitro-4-picoline Spectrum

2-Amino-5-nitro-4-methylpyridine 2-Amino-4-Mythyl-5-NitroPyridine 2-AMINO-4-METHYL-5-NITRO PYRIDINE 98+% 2-AMINO-5-NITRO-4-PICOLINE (2-AMINO-4-METHYL-5-NITROPYRIDINE) 4-Methyl-5-nitro-2-pyridinamine 4-Methyl-5-nitropyridine-2-amine 4-methyl-5-nitropyridin-2-amine hydro chloride 2-Amino-5-nitro-4-picoline,98% 4-Methyl-5-nitro-pyridin-2-ylamine 2-Pyridinamine,4-methyl-5-nitro- 2-AMiono-4Methyl-5Nitropyridine 2-AMINO-5-NITRO-4-PICOLINE 2-Amino-4-methyl-5-nitropyridine > 2-Amino-5-nitro-4-picoline ISO 9001：2015 REACH 2-AMINO-4-METHYL-5-NITROPYRIDINE 4-methyl-5-nitropyridin-2-amine 21901-40-6 Heterocyclic Building Blocks Pyridines Building Blocks C6 Pyridine Pyridines, Pyrimidines, Purines and Pteredines Building Blocks Chemical Synthesis Heterocyclic Building Blocks Heterocycle-Pyridine series amine |nitro-compound compounds of pyridine Amino-pyridine series Amines Pyridines Pyridines derivates Heterocyclic Building Blocks bc0001 C6
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