1,6-Cleve's Acid CAS 119-79-9 | Dye Intermediates
1,6-Cleve's Acid (CAS 119-79-9, EINECS 204-351-2, molecular formula C10H9NO3S, molecular weight 223.25) is a dye intermediate product. Dye intermediate for azo, direct and acid dyes (Direct Fast series); also used in organic pigment and pharmaceutical intermediate synthesis.
[Basic Product Information]
Chinese Name: 混合克利夫酸
English Name: 1,6-Cleve's Acid
Aliases / Synonyms: 1,6-Cleve acid (mixed); Mixed Cleve acid; 1,6-(1,7)-Naphthalenedisulfonic acid, 1-amino-
IUPAC Name: 5-aminonaphthalene-2-sulfonic acid
CAS Registry No.：119-79-9
EINECS No.：204-351-2
Molecular Formula: C10H9NO3S
Molecular Weight: 223.25
Suggested HS Code: 2904.10 / 2922.2 (sulfonated aromatic hydrocarbons and their salts)
SMILES：C1=CC2=C(C=CC(=C2)S(=O)(=O)O)C(=C1)N
InChIKey：UWPJYQYRSWYIGZ-UHFFFAOYSA-N
[Technical Specifications & Supply Information]
Appearance: White to off-white crystalline powder or paste
Assay / Purity: Total sulfonic acid content ≥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 for azo, direct and acid dyes (Direct Fast series); also used in organic pigment and pharmaceutical intermediate synthesis.
[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 1,6-Cleve?
A: 1,6-Cleve has CAS registry number 119-79-9, molecular formula C10H9NO3S, molecular weight 223.25 and EINECS number 204-351-2.
Q: What are the main uses and applications of 1,6-Cleve?
A: Dye intermediate for azo, direct and acid dyes (Direct Fast series); also used in organic pigment and pharmaceutical intermediate synthesis.
Q: What are the standard purity and grade of 1,6-Cleve?
A: Standard supply purity Total sulfonic acid content ≥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 1,6-Cleve?
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 for azo, direct and acid dyes (Direct Fast series); also used in organic pigment and pharmaceutical intermediate synthesis.
Q: How should 1,6-Cleve be stored and transported?
A: Dye intermediate for azo, direct and acid dyes (Direct Fast series); also used in organic pigment and pharmaceutical intermediate synthesis.
[Keywords]
1,6-Cleve, 1,6-Cleve acid (mixed), Mixed Cleve acid, 1,6-(1,7)-Naphthalenedisulfonic acid, 1-amino-, 119-79-9, Dye Intermediates
[Q&A]
Q: What are the CAS number and molecular formula of 1,6-Cleve?
A: 1,6-Cleve has CAS registry number 119-79-9, molecular formula C10H9NO3S, molecular weight 223.25 and EINECS number 204-351-2.
Q: What are the main uses and applications of 1,6-Cleve?
A: Dye intermediate for azo, direct and acid dyes (Direct Fast series); also used in organic pigment and pharmaceutical intermediate synthesis.
Q: What are the standard purity and grade of 1,6-Cleve?
A: Standard supply purity Total sulfonic acid content ≥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 1,6-Cleve?
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 for azo, direct and acid dyes (Direct Fast series); also used in organic pigment and pharmaceutical intermediate synthesis.
Q: How should 1,6-Cleve be stored and transported?
A: Dye intermediate for azo, direct and acid dyes (Direct Fast series); also used in organic pigment and pharmaceutical intermediate synthesis.
