2-Amino-1,5-naphthalenedisulfonic acid CAS 117-62-4 | Dye Intermediates
2-Amino-1,5-naphthalenedisulfonic acid (CAS 117-62-4, EINECS 204-201-6, molecular formula C10H9NO6S2, molecular weight 303.3) is a dye intermediate product. Dye intermediate used to synthesize direct, acid and reactive dyes (Direct Red and Acid Red series); also used in organic pigments and pharmaceutical intermediates.
[Basic Product Information]
Chinese Name: 磺化吐氏酸
English Name: 2-Amino-1,5-naphthalenedisulfonic acid
Aliases / Synonyms: 2-Amino-1,5-naphthalenedisulfonic acid; Sulfonated Tobias acid
IUPAC Name: 2-aminonaphthalene-1,5-disulfonic acid
CAS Registry No.：117-62-4
EINECS No.：204-201-6
Molecular Formula: C10H9NO6S2
Molecular Weight: 303.3
Suggested HS Code: 2904.10 / 2922.2 (sulfonated aromatic hydrocarbons and their salts)
SMILES：C1=CC2=C(C=CC(=C2S(=O)(=O)O)N)C(=C1)S(=O)(=O)O
InChIKey：YAIKCRUPEVOINQ-UHFFFAOYSA-N
[Technical Specifications & Supply Information]
Appearance: White to light pink crystalline powder or paste
Assay / Purity: ≥98.0% (HPLC, dry basis)
Grade: Industrial Grade
Packing: 25 kg woven bag / fiber drum (with inner PE liner)
Standard: enterprise standard / national standard (executed per batch COA)
Supply capacity: standard grades supplied from stock; bulk customization and long-term agreement supply supported
Documents provided: COA and MSDS with each shipment; third-party SGS testing available for bulk orders
Storage: store sealed, protected from light, in a dry and ventilated place, away from fire, heat sources and strong oxidizers
[Applications]
Dye intermediate used to synthesize direct, acid and reactive dyes (Direct Red and Acid Red series); also used in organic pigments and pharmaceutical intermediates.
[Quality & Supply Assurance]
1. Stable batch-to-batch quality, with batch-by-batch inspection before shipment; a COA is provided with each delivery for full traceability;
2. Standard grades held in stock for fast delivery; bulk custom packing and long-term agreement supply supported;
3. Samples available on request, with third-party testing (e.g., SGS) to support incoming-material verification;
4. Our product line covers dye, pharmaceutical, agrochemical and organic pigment intermediates — a one-stop source for multi-category raw materials.
[Frequently Asked Questions (FAQ)]
Q: What are the CAS number and molecular formula of 2-Amino-1,5-naphthalenedisulfonic acid?
A: 2-Amino-1,5-naphthalenedisulfonic acid has CAS registry number 117-62-4, molecular formula C10H9NO6S2, molecular weight 303.3 and EINECS number 204-201-6.
Q: What are the main uses and applications of 2-Amino-1,5-naphthalenedisulfonic acid?
A: Dye intermediate used to synthesize direct, acid and reactive dyes (Direct Red and Acid Red series); also used in organic pigments and pharmaceutical intermediates.
Q: What are the standard purity and grade of 2-Amino-1,5-naphthalenedisulfonic acid?
A: Standard supply purity ≥98.0% (HPLC, dry basis), grade Industrial Grade; custom assay and special specifications available on request — exact figures are per the batch COA.
Q: What are the packing specifications and minimum order quantity (MOQ) of 2-Amino-1,5-naphthalenedisulfonic acid?
A: Standard packing: 25 kg woven bag / fiber drum (with inner PE liner). Samples available on request and custom packing supported; bulk orders can be delivered in batches per agreement.
Q: Can you provide COA, MSDS and other quality documents?
A: Dye intermediate used to synthesize direct, acid and reactive dyes (Direct Red and Acid Red series); also used in organic pigments and pharmaceutical intermediates.
Q: How should 2-Amino-1,5-naphthalenedisulfonic acid be stored and transported?
A: Dye intermediate used to synthesize direct, acid and reactive dyes (Direct Red and Acid Red series); also used in organic pigments and pharmaceutical intermediates.
[Keywords]
2-Amino-1,5-naphthalenedisulfonic acid, 2-Amino-1,5-naphthalenedisulfonic acid, Sulfonated Tobias acid, 117-62-4, Dye Intermediates
[Q&A]
Q: What are the CAS number and molecular formula of 2-Amino-1,5-naphthalenedisulfonic acid?
A: 2-Amino-1,5-naphthalenedisulfonic acid has CAS registry number 117-62-4, molecular formula C10H9NO6S2, molecular weight 303.3 and EINECS number 204-201-6.
Q: What are the main uses and applications of 2-Amino-1,5-naphthalenedisulfonic acid?
A: Dye intermediate used to synthesize direct, acid and reactive dyes (Direct Red and Acid Red series); also used in organic pigments and pharmaceutical intermediates.
Q: What are the standard purity and grade of 2-Amino-1,5-naphthalenedisulfonic acid?
A: Standard supply purity ≥98.0% (HPLC, dry basis), grade Industrial Grade; custom assay and special specifications available on request — exact figures are per the batch COA.
Q: What are the packing specifications and minimum order quantity (MOQ) of 2-Amino-1,5-naphthalenedisulfonic acid?
A: Standard packing: 25 kg woven bag / fiber drum (with inner PE liner). Samples available on request and custom packing supported; bulk orders can be delivered in batches per agreement.
Q: Can you provide COA, MSDS and other quality documents?
A: Dye intermediate used to synthesize direct, acid and reactive dyes (Direct Red and Acid Red series); also used in organic pigments and pharmaceutical intermediates.
Q: How should 2-Amino-1,5-naphthalenedisulfonic acid be stored and transported?
A: Dye intermediate used to synthesize direct, acid and reactive dyes (Direct Red and Acid Red series); also used in organic pigments and pharmaceutical intermediates.
2-Amino-1,5-naphthalenedisulfonic acid;117-62-4;204-201-6;Dye Intermediates;Sulfonated Tobias Acid
