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

Diltiazem Nitroso Impurity 2
Diltiazem Nitroso Impurity 2
CAT No SRC-N0142743
CAS No NA
Mol.F. C20H21N3O5S
Mol.Wt. 415.5 g/mol
INV STATUS CUSTOM SYNTHESIS
N-Nitroso Diltiazem EP Impurity B
N-Nitroso Diltiazem EP Impurity B
CAT No SRC-N0142744
CAS No NA
Mol.F. C18H16N2O5S
Mol.Wt. 372.40 g/mol
INV STATUS CUSTOM SYNTHESIS
N-Nitroso Diltiazem EP Impurity E
N-Nitroso Diltiazem EP Impurity E
CAT No SRC-N0142745
CAS No NA
Mol.F. C16H14N2O4S
Mol.Wt. 330.36g/mol
INV STATUS CUSTOM SYNTHESIS
N-Nitroso Diltiazem 2-Epimer O-Desacetyl N-Desdimethylaminoethyl Impurity
N-Nitroso Diltiazem 2-Epimer O-Desacetyl N-Desdimethylaminoethyl Impurity
CAT No SRC-N0142746
CAS No NA
Mol.F. C16H14N2O4S
Mol.Wt. 330.36 g/mol
INV STATUS CUSTOM SYNTHESIS
N-Nitroso Diltiazem Impurity 4
N-Nitroso Diltiazem Impurity 4
CAT No SRC-N0142747
CAS No NA
Mol.F. C16H14N2O4S
Mol.Wt. 330.36 g/mol
INV STATUS CUSTOM SYNTHESIS
N-Nitroso Diltiazem Impurity 9
N-Nitroso Diltiazem Impurity 9
CAT No SRC-N0142748
CAS No NA
Mol.F. C17H17NO3S
Mol.Wt. 344.39 g/mol
INV STATUS CUSTOM SYNTHESIS
N-Nitroso Diltiazem Trans-(-)-Hydroxy Lactam (S,R-isomer)
N-Nitroso Diltiazem Trans-(-)-Hydroxy Lactam (S,R-isomer)
CAT No SRC-N0142749
CAS No NA
Mol.F. C16H14N2O4S
Mol.Wt. 330.36 g/mol
INV STATUS CUSTOM SYNTHESIS
N-Nitroso Diltiazem USP Related Compound G
N-Nitroso Diltiazem USP Related Compound G
CAT No SRC-N0142750
CAS No NA
Mol.F. C19H21N3O4S
Mol.Wt. 387.45 g/mol
INV STATUS CUSTOM SYNTHESIS
N-Nitroso N-Formyl Dapsone
N-Nitroso N-Formyl Dapsone
CAT No SRC-N0142751
CAS No NA
Mol.F. C13H11N3O4S
Mol.Wt. 305.31 g/mol
INV STATUS CUSTOM SYNTHESIS
N-Nitroso N-Acetyl Dapsone
N-Nitroso N-Acetyl Dapsone
CAT No SRC-N0142752
CAS No NA
Mol.F. C14H13N3O4S
Mol.Wt. 319.34 g/mol
INV STATUS CUSTOM SYNTHESIS

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