Sapropterin Related Products 
Venkatasai is a leading innovator in the field of pharmaceutical reference standards, offering high-quality Reference Standards of Abacavir, including both pharmacopeial and non-pharmacopeial impurities, metabolites, stable isotope-labeled compounds, and nitrosamines (N-NO products). Our Abacavir impurity reference standards play a vital role in pharmaceutical research, supporting product development, ANDA and DMF filings, quality control (QC), method validation, and stability studies. They are also instrumental in identifying unknown impurities and evaluating genotoxic potential. All Abacavir-related products are thoroughly characterized and supplied with comprehensive Certificates of Analysis (COA) and analytical data that comply with regulatory standards. EP/USP traceable standards can also be provided upon request. Furthermore, all supplied products undergo periodic re-testing to ensure continued quality and reliability.
5,6-Dihydrobiopterin
CAT No: VS-S005016
CAS No: 251310-15-3
Mol.F.: C9H13N5O3
Mol.Wt.: 239.2
Status: Custom Synthesis
6R-Tetrahydrobiolumazine
CAT No: VS-S005013
CAS No: N/A
Mol.F.: C9H14N4O4
Mol.Wt.: 242.2
Status: Custom Synthesis
6S-Tetrahydrobilumazine
CAT No: VS-S005017
CAS No: N/A
Mol.F.: C9H14N4O4
Mol.Wt.: 242.2
Status: Custom Synthesis
7-(Hydroxymethyl)tetrahydrobiopterin
CAT No: VS-S005019
CAS No: N/A
Mol.F.: C11H13N5O4
Mol.Wt.: 279.3
Status: Custom Synthesis
7,8-Dihydrobiopterin
CAT No: VS-S005008
CAS No: 6779-87-9
Mol.F.: C9H13N5O3
Mol.Wt.: 239.2
Status: Custom Synthesis
7,8-Dihydropterin
CAT No: VS-S005020
CAS No: N/A
Mol.F.: C6H7N5O
Mol.Wt.: 165.2
Status: Custom Synthesis
Biopterin
CAT No: VS-S005007
CAS No: 22150-76-1
Mol.F.: C9H11N5O3
Mol.Wt.: 237.2
Status: Custom Synthesis
Dehydrodeoxysepiapterin
CAT No: VS-S005012
CAS No: 71014-28-3
Mol.F.: C9H9N5O2
Mol.Wt.: 219.2
Status: Custom Synthesis
Deoxysepiapterin
CAT No: VS-S005011
CAS No: 1797-87-1
Mol.F.: C9H11N5O2
Mol.Wt.: 221.2
Status: Custom Synthesis
L-Sepiapterin
CAT No: VS-S005014
CAS No: 17094-01-8
Mol.F.: C9H11N5O3
Mol.Wt.: 237.2
Status: Custom Synthesis
Neopterin
CAT No: VS-S005015
CAS No: 2009-64-5
Mol.F.: C9H11N5O4
Mol.Wt.: 253.2
Status: Custom Synthesis
Sapropterin
CAT No: VS-S005000
CAS No: 62989-33-7
Mol.F.: C9H15N5O3
Mol.Wt.: 241.3
Status: Custom Synthesis
Sapropterin Dihydrochloride
CAT No: VS-S005001
CAS No: 69056-38-8
Mol.F.: C9H15N5O3 : 2HCl
Mol.Wt.: 241.3 : 2(36.5)
Status: Custom Synthesis
Sapropterin Impurity 1
CAT No: VS-S005021
CAS No: 2098644-02-9
Mol.F.: C10H13N5O4
Mol.Wt.: 267.2
Status: Custom Synthesis
Sapropterin Impurity 2
CAT No: VS-S005022
CAS No: 2098644-06-3
Mol.F.: C10H17N5O4
Mol.Wt.: 271.3
Status: Custom Synthesis
Sapropterin Impurity 3
CAT No: VS-S005023
CAS No: N/A
Mol.F.: C11H13N5O4
Mol.Wt.: 279.3
Status: Custom Synthesis
Sapropterin Impurity 4
CAT No: VS-S005024
CAS No: N/A
Mol.F.: C11H13N5O4
Mol.Wt.: 279.3
Status: Custom Synthesis
Sapropterin Impurity 5
CAT No: VS-S005025
CAS No: N/A
Mol.F.: C9H15N5O3 : 2(HCl)
Mol.Wt.: 241.3 : 2(36.5)
Status: Custom Synthesis
Sapropterin Impurity 6
CAT No: VS-S005026
CAS No: 1067512-58-6
Mol.F.: C19H25N7O5
Mol.Wt.: 431.5
Status: Custom Synthesis
Sapropterin Impurity 7
CAT No: VS-S005030
CAS No: 109784-74-9
Mol.F.: C9H17N5O7S
Mol.Wt.: 339.33
Status: Custom Synthesis
Sapropterin Impurity 8
CAT No: VS-S005031
CAS No: NA
Mol.F.: C6H13Cl2N5O
Mol.Wt.: 242.1
Status: Custom Synthesis
Sapropterin Impurity A
CAT No: VS-S005002
CAS No: 5752-25-0
Mol.F.: C6H9N5O : 2HCl
Mol.Wt.: 167.2 : 2(36.5)
Status: Custom Synthesis
Sapropterin Impurity D
CAT No: VS-S005003
CAS No: 2236-60-4
Mol.F.: C6H5N5O
Mol.Wt.: 163.1
Status: Custom Synthesis
Sapropterin Impurity F
CAT No: VS-S005004
CAS No: 62933-57-7
Mol.F.: C13H15N5O5
Mol.Wt.: 321.3
Status: Custom Synthesis
Sapropterin Impurity G
CAT No: VS-S005005
CAS No: 100-63-0
Mol.F.: C6H8N2
Mol.Wt.: 108.1
Status: Custom Synthesis
Sapropterin Nitroso Impurity 1
CAT No: VS-S005027
CAS No: NA
Mol.F.: C9H13N7O5
Mol.Wt.: 299.2
Status: Custom Synthesis
Sapropterin Nitroso Impurity 2
CAT No: VS-S005028
CAS No: NA
Mol.F.: C9H14N6O4
Mol.Wt.: 270.2
Status: Custom Synthesis
Sapropterin Nitroso Impurity 3
CAT No: VS-S005029
CAS No: NA
Mol.F.: C9H14N6O4
Mol.Wt.: 270.2
Status: Custom Synthesis
Sapropterin Nitroso Impurity 4
CAT No: VS-S005032
CAS No: NA
Mol.F.: C6H7N7O3
Mol.Wt.: 225.2
Status: Custom Synthesis
Sapropterin Nitroso Impurity 5
CAT No: VS-S005033
CAS No: NA
Mol.F.: C6H8N6O2
Mol.Wt.: 196.2
Status: Custom Synthesis
Sapropterin Nitroso Impurity 6
CAT No: VS-S005034
CAS No: NA
Mol.F.: C6H8N6O2
Mol.Wt.: 196.2
Status: Custom Synthesis
Sapropterin Sulfate
CAT No: VS-S005018
CAS No: 103130-44-5
Mol.F.: C9H15N5O3 : H2SO4
Mol.Wt.: 241.3 : 98.1
Status: Custom Synthesis
Sapropterin Sulfate Impurity E
CAT No: VS-S005006
CAS No: 35011-47-3
Mol.F.: C4H7N5O : H2SO4
Mol.Wt.: 141.1 : 98.1
Status: Custom Synthesis
S-Tetrahydrobiopterin
CAT No: VS-S005009
CAS No: 62961-57-3
Mol.F.: C9H15N5O3
Mol.Wt.: 241.3
Status: Custom Synthesis
S-Tetrahydrobiopterin Dihydrochloride
CAT No: VS-S005010
CAS No: 69056-39-9
Mol.F.: C9H15N5O3 : 2HCl
Mol.Wt.: 241.3 : 2(36.5)
Status: Custom Synthesis
