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 Fentanyl EP Impurity J /N-(1-Benzylpiperidin-4-yl)-N-phenylnitrous amide
N-Nitroso Fentanyl EP Impurity J /N-(1-Benzylpiperidin-4-yl)-N-phenylnitrous amide
CAT No SRC-N014393
CAS No 1184873-13-9
Mol.F. C18H21N3O
Mol.Wt. 295.4
INV STATUS IN STOCK
N-Nitroso Fentanyl EP Impurity D /N-(1-Phenethylpiperidin-4-yl)-N-phenylnitrous amide
N-Nitroso Fentanyl EP Impurity D /N-(1-Phenethylpiperidin-4-yl)-N-phenylnitrous amide
CAT No SRC-N014394
CAS No 1184873-14-0
Mol.F. C19H23N3O
Mol.Wt. 309.4
INV STATUS IN STOCK
N-Nitroso Methotrexate EP Impurity B/N-Nitroso Aminopterin
N-Nitroso Methotrexate EP Impurity B/N-Nitroso Aminopterin
CAT No SRC-N014395
CAS No NA
Mol.F. C19H19N9O6
Mol.Wt. 469.4
INV STATUS CUSTOM SYNTHESIS
N-Nitroso Methotrexate EP Impurity L
N-Nitroso Methotrexate EP Impurity L
CAT No SRC-N014396
CAS No NA
Mol.F. C13H15N3O6
Mol.Wt. 309.3
INV STATUS CUSTOM SYNTHESIS
Rivaroxaban Nitroso Impurity 12
Rivaroxaban Nitroso Impurity 12
CAT No SRC-N014397
CAS No NA
Mol.F. C14H18N4O6
Mol.Wt. 338.3
INV STATUS CUSTOM SYNTHESIS
N-Nitroso Thiazolidine-4-Carboxylic Acid
N-Nitroso Thiazolidine-4-Carboxylic Acid
CAT No SRC-N014398
CAS No 88381-44-6
Mol.F. C4H6N2O3S
Mol.Wt. 162.2
INV STATUS CUSTOM SYNTHESIS
1-Nitrosopiperidine-4-Carboxylic Acid/Nitroso Isonipicotic Acid
1-Nitrosopiperidine-4-Carboxylic Acid/Nitroso Isonipicotic Acid
CAT No SRC-N014399
CAS No 6238-69-3
Mol.F. C6H10N2O3
Mol.Wt. 158.2
INV STATUS IN STOCK
Apremilast Nitroso Impurity 3
Apremilast Nitroso Impurity 3
CAT No SRC-N014400
CAS No NA
Mol.F. C22H30N2O7S
Mol.Wt. 466.5
INV STATUS CUSTOM SYNTHESIS
N-Nitroso Chlorobenzhydryl Piperzine
N-Nitroso Chlorobenzhydryl Piperzine
CAT No SRC-N014401
CAS No NA
Mol.F. C17H18ClN3O
Mol.Wt. 315.80
INV STATUS CUSTOM SYNTHESIS
Azelastine Nitroso Impurity 1
Azelastine Nitroso Impurity 1
CAT No SRC-N014402
CAS No NA
Mol.F. C13H18N4O2
Mol.Wt. 262.3
INV STATUS CUSTOM SYNTHESIS

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