PRODUCT NAME: Isobutene (ca. 15% in Tetrahydrofuran) Analytical Standard
Date of Mfg: Sample COA	RETEST DATE: Sample COA

Catalogue Number	GCS-607
Item/Batch Number	Sample COA
Quantity	Sample COA
CAS Number	115-11-7
Mol. Formula	C4H8
Molecular Wt	56.11
IUPAC	2-methylprop-1-ene
Synonyms	Isobutylene (ca. 15% in Tetrahydrofuran),2-Methylpropene (ca. 15% in Tetrahydrofuran)
Long Term Storage Condition	Refrigerated (0-10°C)
Handling instruction	Sample COA

Test	Results
Appearance	Colorless to Almost colorless clear liquid
Water content by KF/TGA	Sample COA
% Potency = [100 - (Water content by KF)] X HPLC Purity)] / 100	Sample COA
Identification by HNMR	Sample COA
Identification By IR	Sample COA
Mass (ESI)	Sample COA
Solubility	Soluble in Water
Purity	NLT 99.0% by (GC)
Analysis Date (Release Date)	Sample COA
Attachments	Sample COA
Other Information	Sample COA
Note: This material can be used as a referance standard and is for research purpose ONLY and not for human consumption