Impurity Reference Standard - Products

Methylparaben

CAT No: CL-PBRN-01 CAS No: 99-76-3 Mol Wt: 152.1 Mol F: C8H8O3 Inv Status: Custom Synthesis

Chemical Name: Methyl 4-hydroxybenzoate

Butylparaben Impurity E

CAT No: CL-PBRN-02 CAS No: [4247-02-3] Mol Wt: 194.2 Mol F: C11H14O Inv Status: Custom Synthesis

Chemical Name: Isobutyl 4-hydroxybenzoate

Propylparaben

CAT No: CL-PBRN-03 CAS No: 94-13-3 Mol Wt: 180.2 Mol F: C10H12O3 Inv Status: Custom Synthesis

Chemical Name: Propyl 4-hydroxybenzoate

Benzyl Paraben

CAT No: CL-PBRN-04 CAS No: 94-18-8 Mol Wt: 228.3 Mol F: C14H12O3 Inv Status: Custom Synthesis

Chemical Name: Benzyl 4-Hydroxybenzoate

Pentyl Paraben

CAT No: CL-PBRN-05 CAS No: 6521-29-5 Mol Wt: 208.3 Mol F: C12H16O3 Inv Status: Custom Synthesis

Chemical Name: Pentyl 4-hydroxybenzoate

Ethylparaben Sodium Salt

CAT No: CL-PBRN-06 CAS No: 35285-68-8 Mol Wt: 166.2 : 23.0 Mol F: C9H10O3 : Na Inv Status: Custom Synthesis

Chemical Name: Ethyl 4-hydroxybenzoate, sodium salt

Ethyl Parahydroxybenoate

CAT No: CL-PBRN-07 CAS No: 120-47-8 Mol Wt: 166.2 Mol F: C9H10O3 Inv Status: Custom Synthesis

Chemical Name: Ethyl 4-hydroxybenzoate

paraben Impurity 2

CAT No: CL-PBRN-08 CAS No: NA Mol Wt: 302.3 Mol F: C13H18O8 Inv Status: Custom Synthesis

Chemical Name: (2R,3R,4S,5R)-1,3,4,5,6-pentahydroxyhexan-2-yl 4-hydroxybenzoate

paraben Impurity 3

CAT No: CL-PBRN-09 CAS No: NA Mol Wt: 302.3 Mol F: C13H18O8 Inv Status: Custom Synthesis

Chemical Name: (2S,3S,4R,5S)-1,2,4,5,6-pentahydroxyhexan-3-yl 4-hydroxybenzoate