Uses
ChemicalBook > CAS DataBase List > 2-METHYL-[1,8]NAPHTHYRIDINE

2-METHYL-[1,8]NAPHTHYRIDINE

Uses
Product Name
2-METHYL-[1,8]NAPHTHYRIDINE
CAS No.
1569-16-0
Chemical Name
2-METHYL-[1,8]NAPHTHYRIDINE
Synonyms
AKOS BBS-00006025;-1,8-naphthyridine;2-METHYL-[1,8]NAPHTHYRIDINE;1,8-Naphthyridine, 2-methyl-;2-Methyl-1,8-naphthyridine>2-Methylpyrido[2,3-b]pyridine;2-Methyl-1,8-diazanaphthalene;2-Methyl-1,8-naphthyridine,97%;2-(6,7-dimethoxy-1,2,3,4-tetrahydroisoquinolin-1-yl)-5,5-dimethylcyclohexane-1,3-dione
CBNumber
CB4672906
Molecular Formula
C9H8N2
Formula Weight
144.17
MOL File
1569-16-0.mol
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2-METHYL-[1,8]NAPHTHYRIDINE Property

Melting point:
96-97°C
Boiling point:
252.8±20.0 °C(Predicted)
Density 
1.141±0.06 g/cm3(Predicted)
storage temp. 
Sealed in dry,Room Temperature
form 
powder to crystal
pka
4.02±0.30(Predicted)
color 
Light yellow to Brown
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Safety

Hazard Codes 
Xi,Xn
Risk Statements 
22-41
Safety Statements 
26-39
WGK Germany 
3
HazardClass 
IRRITANT
HS Code 
2933998090
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Danger
Hazard statements

H302Harmful if swallowed

H318Causes serious eye damage

Precautionary statements

P280Wear protective gloves/protective clothing/eye protection/face protection.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
ADE000831
Product name
2-Methyl-[1,8]naphthyridine
Purity
Aldrich
Packaging
1g
Price
$216
Updated
2025/07/31
TCI Chemical
Product number
M2352
Product name
2-Methyl-1,8-naphthyridine
Purity
>98.0%(GC)
Packaging
1g
Price
$151
Updated
2025/07/31
TRC
Product number
M330863
Product name
2-Methyl-1,8-naphthyridine
Packaging
50mg
Price
$45
Updated
2021/12/16
Matrix Scientific
Product number
018154
Product name
2-Methyl-[1,8]naphthyridine
Packaging
1g
Price
$44
Updated
2021/12/16
SynQuest Laboratories
Product number
3H32-1-HS
Product name
2-Methyl-[1,8]naphthyridine
Purity
98%
Packaging
1g
Price
$144
Updated
2021/12/16
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2-METHYL-[1,8]NAPHTHYRIDINE Chemical Properties,Usage,Production

Uses

2-Methyl-[1,8]-naphthidine, also known as 2-methyl-1,8-naphthidine, is a pharmaceutical intermediate.

Synthesis

7521-41-7

67-64-1

1569-16-0

General procedure for the synthesis of 2-methyl-[1,8]-naphthyridine from 2-amino-3-pyridinecarboxaldehyde and acetone: 2-amino-3-pyridinecarboxaldehyde (11.10 g, 91 mmol), acetone (15.83 g, 272.9 mmol), and L-proline (11.40 g, 100.1 mmol) were dissolved in ethanol (120 mL), and the reaction was carried out under refluxing conditions with The reaction was stirred for 16 hours. After completion of the reaction, the reaction solution was cooled to room temperature and concentrated under reduced pressure. The residue was dissolved in dichloromethane (100 mL) and filtered to remove insoluble material. The filtrate was washed with deionized water (3 x 100 mL), the organic phase was dried with anhydrous sodium sulfate, filtered and concentrated under reduced pressure. The residue was purified by fast column chromatography with the eluent ethyl acetate:petroleum ether (1:10, v/v) to afford 2-methyl-[1,8]-naphthyridine as a white solid (13.0 g, 99% yield). Mass spectrum (ESI): m/z 145 [M + H]+.

References

[1] Bioorganic and Medicinal Chemistry Letters, 2005, vol. 15, # 10, p. 2679 - 2684
[2] Patent: WO2014/85284, 2014, A1. Location in patent: Paragraph 00227
[3] Organic and Biomolecular Chemistry, 2016, vol. 14, # 28, p. 6683 - 6686
[4] Patent: WO2018/132268, 2018, A1. Location in patent: Page/Page column 57
[5] Patent: WO2004/58761, 2004, A1. Location in patent: Page 32

2-METHYL-[1,8]NAPHTHYRIDINE Preparation Products And Raw materials

Raw materials

Preparation Products

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2-METHYL-[1,8]NAPHTHYRIDINE Suppliers

TCI AMERICA
Tel
800-4238616
Fax
+1-888-520-1075 / +1-503-283-1987
Email
sales@tciamerica.com
Country
Americas
ProdList
23653
Advantage
75
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View Lastest Price from 2-METHYL-[1,8]NAPHTHYRIDINE manufacturers

ZHENGZHOU JIUYI TIME NEW MATERIALS CO,.LTD
Product
2-Methyl-[1,8]-Naphthyridine 1569-16-0
Price
US $1.10-9.90/KG
Min. Order
1KG
Purity
99%min
Supply Ability
100KG
Release date
2025-08-20
Career Henan Chemical Co
Product
2-METHYL-[1,8]NAPHTHYRIDINE 1569-16-0
Price
US $1.00/KG
Min. Order
1KG
Purity
90%-99.9%
Supply Ability
500kg
Release date
2019-07-09