[CAS NO. 1937-37-7]??Direct Black 38

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PRODUCTS SPECIFICATIONS [1937-37-7]

Catalog

HY-D0256

Brand

MCE

CAS

1937-37-7

DESCRIPTION [1937-37-7]

Overview

MDL	-
Molecular Weight	781.73
Molecular Formula	C34H25N9Na2O7S2
SMILES	O=S(C1=C(/N=N/C2=CC=C(C3=CC=C(/N=N/C4=CC=C(N)C=C4N)C=C3)C=C2)C(N)=C5C(O)=C(/N=N/C6=CC=CC=C6)C(S(=O)(O[Na])=O)=CC5=C1)(O[Na])=O

For research use only. We do not sell to patients.

Summary

Direct Black 38 (Chlorazol Black E) is an azo dye. Direct Black 38 induces unscheduled DNA synthesis in liver and micronucleus in bone marrow of rats in vivo ^[1] .

Appearance

Solid

Shipping

Room temperature in continental US; may vary elsewhere.

Storage

4°C, sealed storage, away from moisture

* In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)

Solvent & Solubility

In Vitro:

DMSO : 25 mg/mL ( 31.98 mM ; Need ultrasonic)

H ₂ O : 5 mg/mL ( 6.40 mM ; Need ultrasonic)

Preparing
Stock Solutions

Concentration Solvent Mass	1 mg	5 mg	10 mg

1 mM	1.2792 mL	6.3961 mL	12.7921 mL
5 mM	0.2558 mL	1.2792 mL	2.5584 mL
10 mM	0.1279 mL	0.6396 mL	1.2792 mL

* Please refer to the solubility information to select the appropriate solvent.

In Vivo:

1.

Add each solvent one by one: PBS

Solubility: 3.85 mg/mL (4.92 mM); Clear solution; Need ultrasonic and warming and heat to 60°C
2.

Add each solvent one by one: 10% DMSO >> 40% PEG300 >> 5% Tween-80 >> 45% saline

Solubility: ≥ 2.5 mg/mL (3.20 mM); Clear solution
3.

Add each solvent one by one: 10% DMSO >> 90% (20% SBE-β-CD in saline)

Solubility: ≥ 2.5 mg/mL (3.20 mM); Clear solution

* All of the co-solvents are available by MCE.

References

[1] Beije B. Induction of unscheduled DNA synthesis in liver and micronucleus in bone marrow of rats exposed in vivo to the benzidine-derived azo dye, Direct Black 38. Mutat Res. 1987 Apr;187(4):227-34.

Synonyms

2,7-Naphthalenedisulfonic acid, 4-amino-3-[2-[4′-[2-(2,4-diaminophenyl)diazenyl][1,1′-biphenyl]-4-yl]diazenyl]-5-hydroxy-6-(2-phenyldiazenyl)-, sodium salt (1:2)

C.I. Direct Black 38, disodium salt

2,7-Naphthalenedisulfonic acid, 4-amino-3-[[4′-[(2,4-diaminophenyl)azo][1,1′-biphenyl]-4-yl]azo]-5-hydroxy-6-(phenylazo)-, disodium salt

C.I. Direct Black 38

Chlorazol Black E

C.I. 30235

Ahco Direct Black GX

Airedale Black ED

Aizen Direct Deep Black EH

Aizen Direct Deep Black GH

Aizen Direct Deep Black RH

Amanil Black GL

Amanil Black WD

Apomine Black GX

Atlantic Black C

Atlantic Black E

Atlantic Black BD

Atlantic Black EA

Atlantic Black GAC

Atlantic Black GG

Atlantic Black GXCW

Atlantic Black GXOO

Atlantic Black SD

Atul Direct Black E

Azine Deep Black EW

Azocard Black EW

Azomine Black EWO

Belamine Black GX

Bencidal Black E

Benzanil Black E

Benzo Deep Black E

Benzoform Black BCN-CF

Benzo Leather Black E

Black 2EMBL

Black 4EMBL

Brasilamina Black GN

Brilliant Chrome Leather Black H

Calcomine Black

Calcomine Black EXL

Carbide Black E

Chloramine Black C

Chloramine Black EC

Chloramine Black ERT

Chloramine Black EX

Chloramine Black EXR

Chloramine Black XO

Chloramine Carbon Black S

Chloramine Carbon Black SJ

Chloramine Carbon Black SN

Chlorazol Black EA

Chlorazol Black EN

Chlorazol Burl Black E

Chlorazol Leather Black ENP

Chlorazol Silk Black G

Chrome Leather Black E

Chrome Leather Black G

Chrome Leather Black EC

Chrome Leather Black EM

Chrome Leather Brilliant Black ER

Coir Deep Black C

Columbia Black EP

Diacotton Deep Black

Diacotton Deep Black RX

Diamine Deep Black EC

Diamine Direct Black E

Diaphtamine Black V

Diazine Black E

Diazine Direct Black E

Diazine Direct Black G

Diazol Black 2V

Diphenyl Deep Black G

Direct Black A

Direct Black BRN

Direct Black CX

Direct Black CXR

Direct Black EW

Direct Black E

Direct Black N

Direct Black FR

Direct Black GAC

Direct Black GW

Direct Black GX

Direct Black GXR

Direct Black JET

Direct Black Meta

Direct Black methyl

Direct Black RX

Direct Black SD

Direct Black WS

Direct Deep Black E

Direct Deep Black EAC

Direct Deep Black EA-CF

Direct Deep Black EW

Enianil Black CN

Erie Black B

Erie Black BF

Erie Black GAC

Erie Black GXOO

Erie Black JET

Erie Black NUG

Erie Black RXOO

Erie Brilliant Black S

Erie Fibre Black VP

Fenamin Black E

Fibre Black VF

Fixanol Black E

Formaline Black C

Formic Black C

Formic Black CW

Formic Black EA

Formic Black MTG

Formic Black TG

Hispamin Black EF

Interchem Direct Black Z

Kayaku Direct Deep Black S

Kayaku Direct Deep Black EX

Kayaku Direct Deep Black GX

Kayaku Direct Leather Black EX

Kayaku Direct Special Black AAX

Lurazol Black BA

Meta Black

Mitsui Direct Black EX

Mitsui Direct Black GX

Nippon Deep Black

Nippon Deep Black GX

Paper Black T

Paper Black BA

Paper Deep Black C

Paramine Black B

Paramine Black E

Peeramine Black E

Peeramine Black GXOO

Phenamine Black E

Phenamine Black BCN-CF

Phenamine Black CL

Pheno Black EP

Pheno Black SGN

Pontamine Black E

Pontamine Black EBN

Sandopel Black EX

Seristan Black B

Telon Fast Black E

Tertrodirect Black E

Tertrodirect Black EFD

Tetrazo Deep Black G

Union Black EM

Vondacel Black N

Direct Black Z

Direct Black 38

Direct Deep Black EX

Direct Black EX

Direct Deep Black E Extra

Phenamine Black E 200

Coranil Direct Black F

Direct Deep Black E-EX

Direct Black ZSh

Direct Deep Black WX

Chlorozol Black E

NSC 8679

Direct Black BN

Black FR

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