Certificate of Analysis and technical specification for P-Xylene-Dimethyl-13C2, 99 Atom % 13C — CAS 116598-94-8. Applies to all consignments of this product and grade.
| Product Name | P-Xylene-Dimethyl-13C2, 99 Atom % 13C |
|---|---|
| C.A.S. Number | 116598-94-8 |
| Product Category | Solvents & Glycols |
| Product Group | Laboratory Solvents |
| Grade / Standard | Fine chemical grade — assay on specification |
| Physical Form | Clear colorless liquid |
| Country of Origin | India |
| Packing | Standard export packing — bags, drums, carboys, IBC or ISO tank as applicable |
| Storage | Cool, dry, well-ventilated place in tightly closed original packing |
| S. No. | Test Parameter | Specification | Typical Result | Method |
|---|---|---|---|---|
| 1 | Description | Clear colorless liquid | Complies | Visual |
| 2 | Identification | Conforms to the structure of the substance | Complies | FTIR / Chemical test |
| 3 | Purity (by GC) | Not less than 99.5 % (area) | 99.70 | Gas Chromatography |
| 4 | Colour (APHA / Pt-Co) | Not more than 10 | 5 | ASTM D1209 |
| 5 | Water Content | Not more than 0.05 % w/w | 0.0150 | Karl Fischer titration |
| 6 | Acidity (as acetic acid) | Not more than 0.002 % w/w | 0.0002 | Titrimetry |
| 7 | Residue on Evaporation | Not more than 0.001 % w/w | 0.0003 | Gravimetry |
| 8 | Specific Gravity at 25 °C | 0.858 – 0.864 | 0.8615 | Pycnometry / ASTM D4052 |
| 9 | Refractive Index at 20 °C | 1.4938 – 1.4978 | 1.4953 | Refractometry / ASTM D1218 |
This document sets out the standard specification for P-Xylene-Dimethyl-13C2, 99 Atom % 13C and applies to all consignments of this grade. It is not a lot-specific release document; a lot-specific certificate carrying the analysis of the material actually shipped is issued with each consignment. Scapex Exports supplies against customer-specified assay limits and pharmacopoeial standards — send your specification sheet and we will confirm compliance before order.
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