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5-Methyl-1H-pyrrolo[2,3-b]pyridine

CAS No.
824-52-2
Chemical Name:
5-Methyl-1H-pyrrolo[2,3-b]pyridine
Synonyms
5-METHYL-7-AZAINDOLE;5-Methyl-1H-pyrrolo[2,3-b]pyridine;1H-Pyrrolo[2,3-b]pyridine, 5-methyl-
CBNumber:
CB3279018
Molecular Formula:
C8H8N2
Molecular Weight:
132.16
MDL Number:
MFCD06659674
MOL File:
824-52-2.mol
MSDS File:
SDS
Last updated:2026-09-12 18:51:58

5-Methyl-1H-pyrrolo[2,3-b]pyridine Properties

Melting point 138-139 °C
Boiling point 365.4±15.0 °C(Predicted)
Density 1.17±0.1 g/cm3(Predicted)
storage temp. 2-8°C
form solid
pka 7.94±0.20(Predicted)
Appearance White to light yellow Solid
InChI InChI=1S/C8H8N2/c1-6-4-7-2-3-9-8(7)10-5-6/h2-5H,1H3,(H,9,10)
InChIKey DJCJHFFRHKGOCQ-UHFFFAOYSA-N
SMILES C12NC=CC1=CC(C)=CN=2
UNSPSC Code 12352200

SAFETY

Risk and Safety Statements

Symbol(GHS)  Corrosion (GHS05)Exclamation Mark (GHS07)
GHS05,GHS07
Signal word  Danger
Hazard statements  H302-H315-H318
Precautionary statements  P264-P270-P280-P301+P312-P302+P352-P305+P351+P338
Hazard Codes  Xi,Xn
Risk Statements  22-38-41
Safety Statements  26-39
WGK Germany  3
HazardClass  IRRITANT
HS Code  29339900
Storage Class 11 - Combustible Solids
Hazard Classifications Acute Tox. 4 Oral
Eye Dam. 1
Skin Irrit. 2

5-Methyl-1H-pyrrolo[2,3-b]pyridine price More Price(34)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich ADE000939 5-Methyl-1H-pyrrolo[2,3-b]pyridine Aldrich 824-52-2 1g $870 2026-04-30 Buy
Usbiological 282522 5-Methyl-1H-pyrrolo[2,3-b]pyridine Asreported 824-52-2 50mg $460 2026-06-03 Buy
Usbiological 282522 5-Methyl-1H-pyrrolo[2,3-b]pyridine Asreported 824-52-2 100mg $705 2026-06-03 Buy
Usbiological 282522 5-Methyl-1H-pyrrolo[2,3-b]pyridine Asreported 824-52-2 250mg $1094 2026-06-03 Buy
Usbiological 282522 5-Methyl-1H-pyrrolo[2,3-b]pyridine Asreported 824-52-2 500mg $1742 2026-06-03 Buy
Product number Packaging Price Buy
ADE000939 1g $870 Buy
282522 50mg $460 Buy
282522 100mg $705 Buy
282522 250mg $1094 Buy
282522 500mg $1742 Buy

5-Methyl-1H-pyrrolo[2,3-b]pyridine Chemical Properties, Uses, Production

Chemical Properties

5-METHYL-1H-PYRROLO[2,3-B]PYRIDINE is Light yellow solid

Uses

5-METHYL-1H-PYRROLO[2,3-B]PYRIDINE is an intermediate for preparation of pyrrolopyridine compounds as protein kinase modulators useful in treatment of diseases associated with aberrant activity of protein kinases.

Synthesis

5-Methyl-3-((trimethylsilyl)ethynyl)pyridin-2-amine

500903-95-7

5-METHYL-1H-PYRROLO[2,3-B]PYRIDINE

824-52-2

The general procedure for the synthesis of 5-methyl-7-azaindole from 5-methyl-3-((trimethylmethylsilyl)alkynyl)pyridin-2-amine was as follows: 5-methyl-3-((trimethylsilyl)alkynyl)pyridin-2-amine (9.8 g, 48.0 mmol) and N-methylpyrrolidinone (50 mL) were added to a dry three-necked flask. Under ice bath conditions, sodium hydride (60% dispersed in mineral oil, 2.8 g, 59 mmol) was slowly added, followed by heating the reaction mixture to 100 degrees Celsius and holding for 10 minutes. Upon completion of the reaction, the mixture was cooled to room temperature and saturated ammonium chloride solution (50 mL) was slowly added to quench the reaction. Extraction was performed with ethyl acetate (50 mL x 3) and the organic phases were combined. The organic phase was washed sequentially with water (100 mL) and saturated brine (100 mL) and then dried over anhydrous sodium sulfate. After filtration, the filtrate was concentrated to dryness in a rotary evaporator to obtain the crude product. The crude product was recrystallized with ethyl acetate (10 mL) to give 5-methyl-7-azaindole (5.1 g, 38.6 mmol, 80% yield) as a white solid.

References

[1] Patent: CN107056781, 2017, A. Location in patent: Paragraph 0008
[2] Patent: WO2017/133667, 2017, A1. Location in patent: Page/Page column 120
[3] Patent: US2009/253679, 2009, A1. Location in patent: Page/Page column 41
[4] Patent: WO2008/4117, 2008, A1

500903-95-7
824-52-2
Synthesis of 5-Methyl-1H-pyrrolo[2,3-b]pyridine from 5-Methyl-3-((trimethylsilyl)ethynyl)pyridin-2-amine
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View Latest Price from 5-Methyl-1H-pyrrolo[2,3-b]pyridine manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
5-METHYL-1H-PYRROLO[2,3-B]PYRIDINE pictures 2019-12-20 5-METHYL-1H-PYRROLO[2,3-B]PYRIDINE
824-52-2
$1.00 1KG 99% 1000KGS Career Henan Chemical Co

5-Methyl-1H-pyrrolo[2,3-b]pyridine Spectrum

5-METHYL-7-AZAINDOLE 1H-Pyrrolo[2,3-b]pyridine, 5-methyl- 5-Methyl-1H-pyrrolo[2,3-b]pyridine 824-52-2 Aromatics Heterocycles Heterocycle-Pyridine series Heterocycles series