Welcome to LookChem.com Sign In|Join Free

CAS

  • or

1937-37-7

Post Buying Request

1937-37-7 Suppliers

Recommended suppliersmore

  • Product
  • FOB Price
  • Min.Order
  • Supply Ability
  • Supplier
  • Contact Supplier
  • 2,7-Naphthalenedisulfonicacid,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) 1937-37-7

    Cas No: 1937-37-7

  • No Data

  • 1 Kilogram

  • 10000 Metric Ton/Month

  • Shanghai Upbio Tech Co.,Ltd
  • Contact Supplier

1937-37-7 Usage

Chemical Properties

black crystalline powder

Uses

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.

Preparation

4-(4-Aminophenyl)benzenamine double nitriding, in acid conditions and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid?coupling, aniline diazo, in alkaline conditions and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid?group of adjacent a coupling, product again with Benzene-1,3-diamine coupling.

General Description

Gray-black microcrystals or black powder.

Air & Water Reactions

Azo dyes can be explosive when suspended in air at specific concentrations. Slightly soluble in water.

Reactivity Profile

Direct Black 38 is an azo compound. Azo, diazo, azido compounds can detonate. This applies in particular to organic azides that have been sensitized by the addition of metal salts or strong acids. Toxic gases may form with acids, aldehydes, amides, carbamates, cyanides, inorganic fluorides, halogenated organics, isocyanates, ketones, metals, nitrides, peroxides, phenols, epoxides, acyl halides, and strong oxidizing or reducing agents. Flammable gases form with alkali metals. Explosive combination can occur with strong oxidizing agents, metal salts, peroxides, and sulfides. Incompatible with strong acids [NTP, 1992)].

Hazard

Confirmed carcinogen. Moderately toxic by ingestion and inhalation. An eye irritant.

Health Hazard

ACUTE/CHRONIC HAZARDS: Direct Black 38 may be absorbed through the skin. When heated to decomposition it emits very toxic fumes of nitrogen oxides, disodium oxide and sulfur oxides.

Fire Hazard

Flash point data for Direct Black 38 are not available; however, Direct Black 38 is probably combustible.

Safety Profile

Confirmed carcinogen with carcinogenic and tumorigenic data. Moderately toxic by ingestion and inhalation. An eye irritant. Mutation data reported. When heated to decomposition it emits very toxic fumes of NOx, Na2o, and so2.

Properties and Applications

black. Palm black powder. Soluble in water for green light black, solubility 40 g/l (85 ℃), and adequate soluble in alcohol for green light blue-black, right amount soluble in soluble fiber element, insoluble in other organic solvents. The strong sulfuric acid is a deep red in blue, diluted Purple dark reddish brown for to red light black precipitation; In nitric acid solution for yellow brown (not completely); In strong hydrochloric acid for dark red light black solution (don’t). The dye solution to join strong hydrochloric acid for Purple dark reddish brown, precipitation; Concentrated sodium hydroxide solution is generated gray light blue precipitaten. Cellulose fiber of dyeing, the dye absorption rate as well, in 80 ℃ temperature when the biggest affinity. Can discharge. Used for cotton, viscose, silk, polyamide fiber and its blending fabric, leather, wood, biological and plastic color, also used as the raw material of black ink. Standard Acid Resistance Alkali Resistance Light Fastness Soaping Water Fading Stain Fading Stain ISO 3 3 3 2 2-3 AATCC 3 3 4-5 3 2

Standard

Acid Resistance

Fading

Stain

ISO

3

AATCC

3

Check Digit Verification of cas no

The CAS Registry Mumber 1937-37-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,9,3 and 7 respectively; the second part has 2 digits, 3 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1937-37:
(6*1)+(5*9)+(4*3)+(3*7)+(2*3)+(1*7)=97
97 % 10 = 7
So 1937-37-7 is a valid CAS Registry Number.

1937-37-7 Well-known Company Product Price

  • Brand
  • (Code)Product description
  • CAS number
  • Packaging
  • Price
  • Detail
  • Alfa Aesar

  • (A13259)  Chlorazol Black E   

  • 1937-37-7

  • 10g

  • 323.0CNY

  • Detail
  • Alfa Aesar

  • (A13259)  Chlorazol Black E   

  • 1937-37-7

  • 50g

  • 1295.0CNY

  • Detail

1937-37-7SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 11, 2017

Revision Date: Aug 11, 2017

1.Identification

1.1 GHS Product identifier

Product name Direct Black 38

1.2 Other means of identification

Product number -
Other names Chlorazol Black

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:1937-37-7 SDS

1937-37-7Upstream product

1937-37-7Downstream Products

Post a RFQ

Enter 15 to 2000 letters.Word count: 0 letters

Attach files(File Format: Jpeg, Jpg, Gif, Png, PDF, PPT, Zip, Rar,Word or Excel Maximum File Size: 3MB)

1

What can I do for you?
Get Best Price

Get Best Price for 1937-37-7