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Table 2 FTIR signals of n-acetyl l-cysteine

From: Development and validation of a stability indicating green analytical method for the simultaneous estimation of l-glutathione, n-acetyl l-cysteine and Vitamin C in marketed formulation using UV–visible spectroscopy

IR range (cm−1)

Functional groups

Observed values (cm−1)

3200–3140

N–H

3217.01

3800–3400

O–H

3407.2

1800–1600

CONH2

1634.4

1350–1310

C–N

1333.6

3000–2850

C–H

2955.8