Direct Black 38 - Dye content,≥45 % , CAS No.1937-37-7

CAS: 1937-37-7 Cat. No.: D118564 Formule: C34H25N9Na2O7S2 Poids moléculaire: 781.73 Numéro CE: 217-710-3
DISPONIBLE À COMMANDE
GRADE & PURITY Dye content,≥45 %
Synonyms
Azine Deep Black EW | Direct Black EW | Direct Black RX | CI DIRECT BLACK 38 | Direct Black EX | Formic Black MTG | Atlantic Black BD | Mitsui Direct Black GX | Atlantic Black E | ATul Direct Black E | Brasilamina Black GN | Diazine Direct Black E | Direc
Storage
Room temperature
Shipped In
Normal
★
Size
USA
Allemagne (EU)*
Price
Qty
5g
D118564-5g
9 En stock
—

17,90$US

27,90$US
Enregistrer 10,00 $US (35.84%)
25g
D118564-25g
8 En stock
—

65,90$US

103,90$US
Enregistrer 38,00 $US (36.57%)
100g
D118564-100g
En stock ≥10
—

192,90$US

274,90$US
Enregistrer 82,00 $US (29.83%)
500g
D118564-500g
2 En stock
1 En stock

685,90$US

823,90$US
Enregistrer 138,00 $US (16.75%)
Enter a quantity for the sizes you want to add.
🧪
Why this grade

Dye content,≥45 % for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Room temperature Ships Normal Check lot-specific COA for exact specifications.

📋

Quality documents

SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.

📚

Literature proof

Cited in 19 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Specifications

Synonymes
Azine Deep Black EW | Direct Black EW | Direct Black RX | CI DIRECT BLACK 38 | Direct Black EX | Formic Black MTG | Atlantic Black BD | Mitsui Direct Black GX | Atlantic Black E | ATul Direct Black E | Brasilamina Black GN | Diazine Direct Black E | Direc
Spécifications et pureté
Dye content,≥45 %
Conditions de stockage de stockage
Room temperature
Expédié en
Normal
Noms et identifiants
Pubchem Sid
Pubchem Sid Url
https://pubchem.ncbi.nlm.nih.gov/substance/488195278
Sourires canoniques
C1=CC=C(C=C1)N=NC2=C(C3=C(C(=C(C=C3C=C2S(=O)(=O)[O-])S(=O)(=O)[O-])N=NC4=CC=C(C=C4)C5=CC=C(C=C5)N=NC6=C(C=C(C=C6)N)N)N)O.[Na+].[Na+]
IUPAC Name
disodium;4-amino-3-[[4-[4-[(2,4-diaminophenyl)diazenyl]phenyl]phenyl]diazenyl]-5-hydroxy-6-phenyldiazenylnaphthalene-2,7-disulfonate
InChIKey
XRPLBRIHZGVJIC-UHFFFAOYSA-L
INCHI
1S/C34H27N9O7S2.2Na/c35-22-10-15-27(26(36)18-22)41-38-24-11-6-19(7-12-24)20-8-13-25(14-9-20)40-42-32-28(51(45,46)47)16-21-17-29(52(48,49)50)33(34(44)30(21)31(32)37)43-39-23-4-2-1-3-5-23;;/h1-18,44H,35-37H2,(H,45,46,47)(H,48,49,50);;/q;2*+1/p-2
Isomères SMILES
C1=CC=C(C=C1)N=NC2=C(C3=C(C(=C(C=C3C=C2S(=O)(=O)[O-])S(=O)(=O)[O-])N=NC4=CC=C(C=C4)C5=CC=C(C=C5)N=NC6=C(C=C(C=C6)N)N)N)O.[Na+].[Na+]
WGK Allemagne
3
RTECS
QJ6160000
Poids moléculaire
781.73
Reaxy-Rn
8535071
Reaxys-RN_link_address
https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=8535071&ln=

Documentation

📋 Safety Data Sheet (SDS)

Comprehensive hazard, handling, storage, and regulatory compliance document.

Download SDS →

✅ Certificate of Analysis (COA)

Lot-specific quality data. Enter your lot number to retrieve the exact COA.

Look up COA →

📊 Datasheet

Quick-reference summary of product specifications and applications.

View datasheet →

🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

View spec sheet →

Advanced Data

Taxonomic Classification

Taxonomy Tree

KingdomOrganic compounds
SuperclassBenzenoids
ClasseBenzene and substituted derivatives
SubclassBiphenyls and derivatives
Intermediate Tree Nodes Not available
Direct ParentBenzidines
Alternative Parents 2-naphthalene sulfonates  2-naphthalene sulfonic acids and derivatives  Azobenzenes  1-sulfo,2-unsubstituted aromatic compounds  Aniline and substituted anilines  Phenoxides  Sulfonyls  Organosulfonic acids  Azo compounds  Propargyl-type 1,3-dipolar organic compounds  Hydrocarbon derivatives  Organic sodium salts  Organic zwitterions  Organooxygen compounds  Primary amines  Organic oxides  
Molecular FrameworkAromatic homopolycyclic compounds
Substituents Naphthalene sulfonate - Azobenzene - Benzidine - 2-naphthalene sulfonic acid or derivatives - Naphthalene sulfonic acid or derivatives - 2-naphthalene sulfonate - Naphthalene - Arylsulfonic acid or derivatives - 1-sulfo,2-unsubstituted aromatic compound - Aniline or substituted anilines - Phenoxide - Organic sulfonic acid or derivatives - Organosulfonic acid or derivatives - Organosulfonic acid - Sulfonyl - Azo compound - Organic 1,3-dipolar compound - Propargyl-type 1,3-dipolar organic compound - Organic alkali metal salt - Organic sodium salt - Amine - Organic salt - Primary amine - Organic zwitterion - Organosulfur compound - Organooxygen compound - Organonitrogen compound - Organic oxygen compound - Organic nitrogen compound - Organic oxide - Hydrocarbon derivative - Aromatic homopolycyclic compound
DescriptionThis compound belongs to the class of organic compounds known as benzidines. These are organic compounds containing the benzidine skeleton, made up of a biphenyl ring system substituted at the 4- and 4'-positions with a unsubstituted amine group.
External Descriptors Not available
Structure 3D
Modèle de structure chimique interactif





Certificats (CoA, COO, BSE/TSE et tableau d'analyse)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:

Find and download the COA for your product by matching the lot number on the packaging.

5 results found

Lot NumberCertificate TypeDateArticle
K2510631Certificate of AnalysisNov 12, 2025 D118564
D2301839Certificate of AnalysisJun 14, 2022 D118564
D2301840Certificate of AnalysisJun 14, 2022 D118564
D2301841Certificate of AnalysisJun 14, 2022 D118564
H1803112Certificate of AnalysisJun 14, 2022 D118564
Propriétés chimiques et physiques
Point de fusion (°C)109-110°C
Poids moléculaire781.700 g/mol
XLogP3
Hydrogen Bond Donor Count4
Hydrogen Bond Acceptor Count16
Rotatable Bond Count7
Exact Mass781.111 Da
Monoisotopic Mass781.111 Da
Topological Polar Surface Area304.000 Ų
Heavy Atom Count54
Formal Charge0
Complexity1460.000
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
The total count of all stereochemical bonds0
Covalently-Bonded Unit Count3
Citations of This Product
Calculateurs de solution
Avis

Avis des clients

Foire aux questions

How should this product be stored?
Store at room temperature.
How is this product shipped?
This product ships under standard ambient conditions. No temperature-controlled packaging is required.
What are the CAS number, molecular formula and molecular weight?
The CAS Number is 1937-37-7, the molecular formula is C34H25N9Na2O7S2, and the molecular weight is 781.73 g/mol. InChIKey XRPLBRIHZGVJIC-UHFFFAOYSA-L.
What documentation is provided?
Available product documentation, including Certificates of Analysis (COA), Safety Data Sheets (SDS), and specification sheets, is shown in the product document area. Document availability and access follow the current site policy.

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