We are thrilled to announce that the highly anticipated N-Nitroso impurities of Amide and Indole have now been successfully developed e.g. N-Nitroso Orlistat , N-Nitroso Ropinirole , N-Nitroso Caprolactam ,N-Nitroso Gabapentin EP Impurity A , N-Nitroso Rizatriptan , N-Nitroso Zolmitriptan, N-Nitroso Naratriptan , N-Nitroso Tadalafil , N-Nitroso Eletriptan etc. are ready Stock
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We are thrilled to announce that the highly anticipated N-Nitroso impurities of Amide and Indole have now been successfully developed e.g. N-Nitroso Orlistat , N-Nitroso Ropinirole , N-Nitroso Caprolactam ,N-Nitroso Gabapentin EP Impurity A , N-Nitroso Rizatriptan , N-Nitroso Zolmitriptan, N-Nitroso Naratriptan , N-Nitroso Tadalafil , N-Nitroso Eletriptan etc. are ready Stock

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Nitroso

Nitrosamines are a group of chemical compounds that contain the nitroso functional group (NO) attached to an amine group (-NH). They can form in various ways, including through industrial processes, combustion, and certain chemical reactions, particularly involving nitrites and secondary amines. Nitrosamines are of concern because Many nitrosamines (N-Nitrosamines) are potent genotoxins; some have been classified as possible human carcinogens, although the degree of risk can vary depending on factors such as the amount of exposure and individual susceptibility. Synchemia Research Chemical is dedicated to thoroughly investigating the formation of nitroso impurities in APIs, including those related to the manufacturing processes. This approach indicates a proactive stance toward quality control and regulatory compliance. By exploring all potential sources of nitroso impurities, including those arising from the production processes themselves, Synchemia Research Chemical demonstrates a commitment to ensuring the purity, safety, and efficacy of their pharmaceutical products. Nitrosoamines, including N-Des-methyl Nitroso impurities, are important in pharmaceutical research and development due to their potential impact on drug safety and efficacy. Understanding and controlling the presence of these impurities is crucial for ensuring the quality and safety of pharmaceutical products. Can N-Nitrosamines exist in two different stable forms? N-nitrosamines substituted with two different alkyl groups can exist in two different stable forms distinguishable by several analytical methods. The two rotamers may differ in their overall dipole moment and therefore may posses different chemical and physical properties. Why do I see two peaks when analyzing N-Nitrosamines by HPLC or GC? HPLC and GC)analysis of N-nitrosamines may show two rotamers of the N-nitrosamine as two separate peaks. Whether two peaks are observed depends on the structure of the N-nitrosamine (i.e., symmetric vs. asymmetric) as well as the separation power of the analytical method.
We are the Synchemia Research Chemical specializes in manufacturing and exporting various nitrosoamine compounds, particularly focusing on N-Des-methyl Nitroso impurities of various APIs and nitroso compounds of direct APIs that contain secondary amines. By specializing in the synthesis and export of these compounds, Synchemia Research likely plays a significant role in supporting the pharmaceutical industry's efforts to meet regulatory requirements and ensure the highest standards of quality and safety in drug manufacturing.
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Pharmaceutical Reference Standards

N-Nitroso 4-Chlorophenothiazine
N-Nitroso 4-Chlorophenothiazine
CAT No SRC-N014806
CAS No NA
Mol.F. C12H7ClN2OS
Mol.Wt. 262.7
INV STATUS CUSTOM SYNTHESIS
N-Nitroso N-Desmethyl Prochlorperazine
N-Nitroso N-Desmethyl Prochlorperazine
CAT No SRC-N014807
CAS No 109095-35-4 (free base)
Mol.F. C19H21ClN4OS
Mol.Wt. 388.9
INV STATUS IN STOCK
N-Nitroso-2-chlorophenothiazine
N-Nitroso-2-chlorophenothiazine
CAT No SRC-N014808
CAS No NA
Mol.F. C12H7ClN2OS
Mol.Wt. 262.7
INV STATUS CUSTOM SYNTHESIS
Etravirine Nitroso Impurity 1
Etravirine Nitroso Impurity 1
CAT No SRC-N014809
CAS No NA
Mol.F. C11H7N5O3
Mol.Wt. 257.2
INV STATUS CUSTOM SYNTHESIS
Etravirine Nitroso Impurity 2
Etravirine Nitroso Impurity 2
CAT No SRC-N014810
CAS No NA
Mol.F. C11H5Cl2N5O
Mol.Wt. 294.1
INV STATUS CUSTOM SYNTHESIS
Etravirine Nitroso Impurity 3
Etravirine Nitroso Impurity 3
CAT No SRC-N014811
CAS No NA
Mol.F. C20H13ClN6O2
Mol.Wt. 404.8
INV STATUS CUSTOM SYNTHESIS
Etravirine 3-Amino Bromo Nitroso Impurity​​​​​​​
Etravirine 3-Amino Bromo Nitroso Impurity​​​​​​​
CAT No SRC-N014812
CAS No NA
Mol.F. C11H6BrClN6O
Mol.Wt. 353.6
INV STATUS CUSTOM SYNTHESIS
Etravirine 6-Dimer Nitroso Impurity
Etravirine 6-Dimer Nitroso Impurity
CAT No SRC-N014813
CAS No NA
Mol.F. C29H20BrN7O3
Mol.Wt. 594.4
INV STATUS CUSTOM SYNTHESIS
Etravirine Chloro Nitroso Impurity
Etravirine Chloro Nitroso Impurity
CAT No SRC-N014814
CAS No NA
Mol.F. C20H14ClN7O2
Mol.Wt. 419.8
INV STATUS CUSTOM SYNTHESIS
Etravirine N-Oxide Nitroso Impurity 21
Etravirine N-Oxide Nitroso Impurity 21
CAT No SRC-N014815
CAS No NA
Mol.F. C20H14BrN7O3
Mol.Wt. 480.3
INV STATUS CUSTOM SYNTHESIS

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