[BS-01] CRYSTAL VIOLET                                                                                               CAS-No. 548-62-9

Chemical Formula

C₂₅H₃₀ClN₃

Molecular Weight

407.98

589-593 nm

Solution clarity ( Ethanol )

Conforms

≤ 10.0%

Chemical Formula

C₂₀H₆Br₄Na₂O₅

Molecular Weight

691.86

Absorption maximum λ  max (water)

515-518nm

Solution clarity ( Water )

Conforms

Loss on drying

≤ 9%

Chemical Formula

C₂₀H₁₇N₃Na₂O₉S₃

Molecular Weight

585.55

540-549nm

Solution clarity ( Water )

Conforms

Loss on drying

≤ 10%

[BS-04] FUCHSIN BASIC                                                                                               CAS-No. 632-99-5

Chemical Formula

C₂₀H₂₀ClN₃

Molecular Weight

337.85

Absorption maximum λ max (ethanol 50%)

549-552nm

Solution clarity ( Ethanol )

Conforms

Loss on drying

≤ 10%

[BS-05] METHYLENE BLUE TRIHYDRATE                                                                      CAS-No.61-73-4

Chemical Formula

C₁₆H₁₈ClN₃S·3H₂O

Molecular Weight

373.90

Absorption maximum λ max (ethanol 50%)

Solution Clarity (Ethanol)

Loss on drying

[ BS-06 ] SAFRANINE O                                                                                                   CAS-No. 477-73-6

Chemical Formula

C₂₀H₁₉ClN₄

Molecular Weight

350.88

Content

≥ 95%

Absorption max(50% ethanol) at max

530-534nm

Absorptivity (A1%/1cm,in 50% ethanol) at max

>1500

Loss on drying

≤ 5 %

[BS-07] SUDAN I                                                                                                                               C.I.12055

Chemical formula:

C₁₆H₁₂N₂O

Molecular weight:

248.28

Melting point

129-134°C

Solution Clarity (Ethanol)

Loss on drying

≤ 4 .0%

[BS-08] SUDAN III                                                                                                                CAS-No. 85-86-9

Chemical formula:

C₂₂H₁₆N₄O

Molecular weight:

352.40

Melting point

195-206 °C

Solution Clarity(benzene)

Conforms

Residue on ignition (As sulphate)

≤ 1.0%

Loss on drying

≤ 1.0%

[ BS-09 ] SUDAN IV                                                                                                             CAS-No. 85-83-6

Chemical formula:

C₂₄H₂₀N₄O

Molecular weight:

380.45

Melting point

188-192°C (2°C )

Solution Clarity(benzene)

Conforms

Residue on ignition (As sulphate)

≤ 1.0%

Loss on drying

≤ 1.0%