Direct Black 38
1 Inquiries
1937-37-7
99%
Bottle,barrel,cargo,container,etc.
2026-06-30
Intermediates,Building blocks,API,Silicones,Peptides,Lab chemicals
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Product Description
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Seller Information
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Inquiry History
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DescriptionKeywords
1937-37-7
Direct Black 38
C34H25N9Na2O7S2
Quick DetailsProName:Direct Black 38
CasNo:1937-37-7
Molecular Formula:C34H25N9Na2O7S2
Appearance:powder, or liquid
Application:Pharmaceuticals, intermediates, APIs, custom synthesis, chemicals
DeliveryTime:5-7 Days
PackAge:Bottle, barrel, cargo, container, etc.
Port:Shanghai
Purity:99
Storage:Stored in room temperature, ventilated place
Transportation:By air, ship, express, etc.
LimitNum:0
Grade:Industrial Grade
SuperiorityBest Seller, High Quality, Competitive Price, Fast Delivery, Quick Response
DetailsLEAPChem supplies high quality Pharmaceuticals, intermediates, APIs, custom synthesis, fine chemicals and other industrial chemicalsBasic Info-
Product Name:
Direct Black 38
Other Name: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;61701-15-3;220970-37-6
CAS No.:1937-37-7
Molecular Formula:C34H27N9O7S2.2Na
InChIKeys:InChIKey=BPSJKGMNBUOTKY-UHFFFAOYSA-N
Molecular Weight:781.73
Exact Mass:781.111389
EC Number:217-710-3
UNII:C7SV16SLWM
DSSTox ID:DTXSID7020184
NCI Thesaurus Code:C45531
Color/Form:Grey-black powder
HScode:29299090
Categories:
Characteristics-
PSA:
303.61000
XLogP3:11.91860
Appearance:Black Crystalline Powder
Density:1.61g/cm3
Melting Point:109-110°C
Boiling Point:Decomposes (NTP, 1992)
Refractive Index:1.768
Water Solubility:Azo dyes can be explosive when suspended in air at specific concentrations. Slightly soluble in water.
Storage Conditions:Keep container closed when not in use. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
Toxicity:Oral-rat LD50: 7600 mg/kg; inhalation-rat LCL0: 180000 mg/m3/1 hour
Flammability characteristics:Flammable; burning produces toxic nitrogen oxides, sulfur oxides and sodium oxide fumes
Air and Water Reactions:Azo dyes can be explosive when suspended in air at specific concentrations. Slightly soluble in water.
Reactive Group:Azo, Diazo, Azido, Hydrazine, and Azide Compounds
Reactivity Alerts:Explosive
Reactivity Profile:C.I. 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 IdentificationClassification of the substance or mixture
Carcinogenicity, Category 1B
Reproductive toxicity, Category 2
GHS label elements, including precautionary statements
Pictogram(s) 
Signal word Danger
Hazard statement(s) H350 May cause cancer
Precautionary statement(s) Prevention P203 Obtain, read and follow all safety instructions before use.
P280 Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/...
Response P318 IF exposed or concerned, get medical advice.
Storage P405 Store locked up.
Disposal P501 Dispose of contents/container to an appropriate treatment and disposal facility in accordance with applicable laws and regulations, and product characteristics at time of disposal.
Other hazards which do not result in classification
no data available
Handling and StoragePrecautions for safe handling
Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.
Conditions for safe storage, including any incompatibilities
PRECAUTIONS FOR "CARCINOGENS": Storage site should be as close as practical to lab in which carcinogens are to be used, so that only small quantities required for ... expt need to be carried. Carcinogens should be kept in only one section of cupboard, an explosion-proof refrigerator or freezer (depending on chemicophysical properties ...) that bears appropriate label. An inventory ... should be kept, showing quantity of carcinogen & date it was acquired ... Facilities for dispensing ... should be contiguous to storage area. Chemical Carcinogens
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Seller Information
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Business Type:
Trader
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Main Products:
Intermediates,Building blocks,API,Silicones,Peptides,Lab chemicals
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Location:
Room A, 23rd Floor, No. 609 Yan'an Road, Gongshu District, Hangzhou, Zhejiang
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Payment Terms:
TT against copy of documents,D/P,L/C
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Average lead Time:
5
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Total Annual Revenue:
Above $100 million
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Year of Establishment:
2020
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Certifications:
ISO
">Company ProfileLEAPChem is a specialized fine chemical supplier for research, development and production.
LEAPChem provides nearly 200,000 rare and innovative chemical products to support the evolving needs of our customers in research & bulk manufacturing activities.
As a highly customer-oriented enterprise, we are committed to providing high-quality customer services and products to our global customers in a cost-effective and efficient manner.
Our client list includes many major pharmaceutical and science companies, universities, research institutions and chemical catalogue companies.
Methodology: Sound & Stable; Active & Innovative.
Attitude: Conscientious; Ingenious.
Goals: Customer's Satisfaction
We regard client's success as our success.
At LEAPChem, we strive to be the preferred supplier for efficiency increasing and cost lowering in your Research & Production.
To achieve this strategic vision, we always push ourselves to exceed our customer's requirement. By focusing on the aim of 'Beyond Your Expectation', we continually expand our product lines, and enhance our systematic management and human resources.
Welcome to contact us and we look forward to becoming your reliable and preferred partner.
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Inquiry History1 Inquiries
Country Product Purchase Quantity Date Posted 
France
Direct Black 38
100 MT Feb 18, 2026 Post an enquiry for this product
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