4-TERT-BUTYLPHENOL (PTBP) PARA-TERTIARY-BUTYLPHENOL. CAS NO. 98-54-4, PURITY 99.9% BY WEIGHT. USED AS A CHEMICAL CHAIN STOPPER OF POLYCARBONATE RESINS.

CLASSIFICATION HAS BEEN DETERMINED IN ACCORDANCE WITH THE FOLLOWING:- GENERAL INTERPRETATIVE RULES (GIR)S:- GIR 1 HAS BEEN USED TO CLASSIFY THIS PRODUCT BY THE TERMS OF HEADING 2907, FOR PHENOLS; PHENOL ALCOHOLS: GIR 6 HAS BEEN USED TO CLASSIFY THE GOODS TO SUBHEADING LEVEL 2907 POLYPHENOLS, PHENOL-ALCOHOLS: OTHER CN CODE 2907199090 OTHER NSEWHERE SPECIFIED. ALSO CLASSIFIED IN ACCORDANCE WITH:- CHAPTER NOT 1 TO 29. EXCLUDED FROM 290712 00- NOT CONSIDERED TO BE CRESOLS AND THEIR SALTS.