Home Categories Dyes and Pigments Direct Black 38
A3223512

Direct Black 38 , Analysis standard , 1937-37-7

Synonym(s):
4-Amino-3-[[4′-[(2,4-diaminophenyl)azo][1,1′-biphenyl]-4-yl]azo]-5-hydroxy-6-(phenylazo)-2,7-naphthalenedisulfonic acid disodium salt;Chlorazole Black E;Direct Black 38

CAS NO.:1937-37-7

Empirical Formula: C34H28N9NaO7S2

Molecular Weight: 761.76

MDL number: MFCD00066363

EINECS: 217-710-3

Pack Size Price Stock Quantity
100MG RMB799.20 In Stock
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Update time: 2022-07-08

PRODUCT Properties

Melting point: 109-110°C
storage temp.  Amber Vial, Refrigerator, Under inert atmosphere
solubility  DMSO (Slightly), Methanol (Slightly, Heated), Water (Slightly)
Colour Index  30235
form  Crystalline Powder
color  Black
Stability: Light Sensitive

Description and Uses

Direct black 38 is a black powder. An AZOcompound. Molecular weight= 781.78; Freezing/Meltingpoint $ 400℃. Hazard Identification (based on NFPA-704M Rating System): Health 1, Flammability 1, Reactivity 0.Slightly soluble in water.

Chlorozol Black E is a chitin-specific stain and used to detect fungal filaments. Dyes and metabolites, Environmental Testing.Environmental toxin on US EPA Toxic Release Inventory list (TRI) list.

Safety

Symbol(GHS) 
GHS07,GHS08
Signal word  Danger
Hazard statements  H319-H350-H361d
Precautionary statements  P201-P305+P351+P338-P308+P313
Hazard Codes  T
Risk Statements  45-63-36
Safety Statements  53-45-36/37-26
WGK Germany  3
RTECS  QJ6160000
TSCA  Yes
HS Code  29299090
Toxicity LD50 orl-rat: 7600 mg/kg TSCAT* OTS 215154

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