| PHYSICAL FORM | POWDER |
| QUANTITY WITHIN EACH UNIT PACKAGE | 25.000 GRAMS |
| COMPOSITION AND PERCENTAGE | 98.5 MINIMUM BY WEIGHT 1-AMINO-2-NAPHTHOL-4-SULFONIC ACID |
| IMPURITIES LIMITATION IN PERCENT | RESIDUE AFTER IGNITION1.00,SULFATE0.50 |
| MEDICAL DESIGNATION AND GRADE | REAGENT |