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Methyl (–CH₃)
10–15 ppm
Methylene (–CH₂–)
15–40 ppm
Methine (–CH–)
20–50 ppm
Quaternary carbon (C–)
30–45 ppm
C–O (alcohols/ethers):
50-90 ppm
C–N (amines):
40-70 ppm