Sr No.	Name of Raw-Materials	Parameters Specified	Requirements
17	Tobias Acid M.W =223	Appearence Assay Insoluble Solubility Impurities	Light pinkish dry powder 98% Min. 0.2% Max Soluble in dilute alkali
18	2-pyridone M.W.=196	Appearence Assay Insoluble Solubility Impurities	Plate yellow dry powder 95% Min 0.2% Max Soluble in dilute alkali 1% Max all together
19	Vinyl Sulfone M.W=311 (ortho anisidine base0	Appearence Assay Insoluble Solubility Impurities	Off white to light gray dry powder 90% Min 0.5% Max. Soluble in water Difference between Diazo value and hydrolysis value 4% Max.
20	Vinyl Sulfone M.W.=341 2,5-Di	Appearence Assay Insoluble Solubility Impurities	Grayish dry powder 85% Min 0.8% Max Soluble in water Difference between Diazo value and hydrolysis value 3% Max.
21	Vinyl Sulfone M.W.=325	Appearence Assay Insoluble Solubility Impurities	Grayish dry powder 90% Min 0.5% Max Soluble in dilute alkali forming clear solution with bluish fluorescence. Amino G. 0.3% Max
22	K-Acid M.W=383	Appearence Assay Insoluble Solubility Impurities	Yellowish moist material 65% Min 0.2% Max Soluble in dilute alkali forming clear solution with bluish fluorescence 1.0% Max all together
23	C-Acid M.W.=303	Appearence Assay Insoluble Solubility Impurities	Pinkish moist/dry material 65% Min for moist material 80% Min for dry material 0.20% Max Clear solution in dilute alkali with bluish 1.0% Max all together
24	Meta Ureido Anline M.W.=151	Appearence Assay Insoluble Solubility Impurities	Pinkish dry powder 70% Min. 0.2% Max Clear solution in hot dilute acid 2% max Di Ureido product
25	Mixed Cleve's Acid M.W.=223	Appearence Assay Insoluble Solubility Impurities	White to cream colored dry material 98% Min 0.2% Max. Clear solution in dilute alkali Nil
26	Aniline 2,4-Disulfonic acid M.W. =173	Appearence Assay Insoluble Solubility Impurities	Reddish brown material 60% Min for moist material 0.2% Max. Soluble in dilute alkali 1% Max all impurities
27	Metanilic Acid M.W.=173	Appearence Assay Insoluble Solubility Impurities	White to light pinkish dry powder 98% Min. 0.2% Max. Clear Solution dilute alkali Nil
28	Orthanlic Acid M.W=173	Appearence Assay Insoluble Solubility Impurities	White to cream colored dry powder 98% Min 0.2% Max. Clear solution in dilute alkali Nil
29	F.C. Acid M.W= 279	Appearence Assay Insoluble Solubility Impurities	Bluish gray dry powder 90% Min. 0.3% Max (alkali) Soluble in hot dilute alkali Para Phenylene diamine - Nil 4 - Nitro - 4 - Amino Dipenylamine 2- Sulfonic acid
30	N-Phenyl J- Acid M.W=315	Appearence Assay Insoluble Solubility Impurities	Grayish dry powder 85% Min. 0.2% Max. Soluble in dilute alkali Unreacted J-Acid 0.2% Max. DI J - Acid 0.5% Max. Aniline Nil.
31	5 - Sulfo Anthanilic Acid M.W = 217	Appearence Assay Insoluble Solubility Impurities	Pale yellow dry powder 95% Min 0.2% Max. Clear solution in dilute alkali Anthranilic acid Nil Paper Chromatogram - single spot
32	4 DiaminoBenzeneSulfanilide(DASA)=263	Appearence Assay Insoluble Solubility Impurities	Pinkish dry powder 90% Min 0.25% Max Soluble in hot dilute acid 1. Sulfanilic acid - Nil Di - DASA - 2% Max.
33	MetaphenyleneDiamine M.W=108	Appearence Assay Insoluble Solubility Impurities	Blackish crystalline material 95% Min 0.2% Max Clear solution water. Nil

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