Tobias Acid
CAS: 81-16-3
Packing: 25kg per bag
Origin: Made In China
As a professional Tobias Acid supplier, we provide high-quality grade: industrial grade (≥97% purity) from China. Our Tobias Acid products meet export industry standards.
Contact us
- No.420 Zhonghua Road,Qinghuai District, Nanjing,China 210001
- 008618005174481
- Mr.Sam
- sales@nanjingchem.com
Product Introduction
Tobias Acid (CAS 81-16-3) – High Purity Industrial Grade Manufacturer & Supplier
1. Product Introduction
Tobias Acid (CAS 81-16-3), professionally known as 2-Naphthylamine-1-Sulfonic Acid, is a high-purity naphthalene-based aromatic organic intermediate widely used in the global fine chemical industry. Featuring the accurate molecular formula CHNOS, this premium chemical compound presents off-white to light pink crystalline powder appearance, with ultra-stable chemical properties and outstanding reaction activity. As a vital bifunctional intermediate with amino and sulfonic acid groups in its molecular structure, Tobias Acid supports diverse complex organic synthesis reactions. As a top-tier core raw material for dyes, organic pigments, and textile fluorescent whitening agents, industrial-grade Tobias Acid supplied by our factory has become a preferred intermediate for global fine chemical and colorant product manufacturers.
2. Product Specifications
As a professional Tobias Acid manufacturer in China, we supply premium industrial-grade and high-purity Tobias Acid CAS 81-16-3 with standardized and customizable technical specifications. Strict quality control ensures stable batch quality, fully meeting customized and mass industrial production requirements for global clients. The detailed core technical specifications of our Tobias Acid are listed below:
| Test Item | Standard Specification |
|---|---|
| Product Name | Tobias Acid (2-Naphthylamine-1-Sulfonic Acid) |
| CAS Number | 81-16-3 |
| Molecular Formula | CHNOS |
| Molecular Weight | 223.25 |
| Appearance | Off-white to light pink crystalline powder |
| Purity | ≥97.0% / ≥98.0% (customizable) |
| Insoluble Matter in Water | ≤0.1% |
| Moisture Content | ≤0.5% |
| Shelf Life | 24 months under proper storage conditions |
3. Product Features & Applications
Core Product Features
- High Purity & Stable Batch Quality: Our premium Tobias Acid adopts advanced purification production technology, featuring low impurity content and stable molecular activity. Strict full-process quality inspection guarantees consistent batch-to-batch quality, effectively avoiding color deviation and synthesis failure in downstream dye and pigment production, which is the core advantage of our wholesale Tobias Acid products.
- Superior Organic Synthesis Activity: The unique molecular structure of Tobias Acid CAS 81-16-3 endows excellent diazotization and coupling performance. It can efficiently participate in various complex organic synthesis reactions, with high reaction activity and high conversion rate, perfectly suitable for high-precision fine chemical production scenarios.
- Strong Industrial Compatibility & Cost-Effective: Our bulk Tobias Acid has excellent compatibility with all conventional dye synthesis raw materials. It achieves high yield and high utilization rate in continuous industrial production, greatly reducing the comprehensive production cost for downstream manufacturers, making it the most cost-effective Tobias Acid for export.
- Reliable Quality & Stable Supply: As a professional Tobias Acid supplier, we implement full-process monitoring from raw material feeding to finished product delivery. Stable production capacity and strict quality system ensure long-term stable supply and consistent product performance, supporting global clients’ long-term bulk order cooperation.
Main Applications
Tobias Acid is an indispensable core naphthalene-based intermediate in the global fine chemical and dye industry. Our high-quality Tobias Acid with stable specifications is widely applied in the following professional fields:
- Dye & Pigment Industry: Used for synthesizing J-acid, γ-acid, scarlet acid, and other key dye intermediates; further applied to produce reactive red, organic purplish red, lithol rubine, lithol red R, and other azo dyes and organic pigments.
- Fluorescent Whitening Agent: Serves as a core raw material for the production of high-efficiency fluorescent whitening agents for textiles, paper making, and plastic industries.
- Organic Synthesis: Applied in the research and production of various fine chemical derivatives, pharmaceutical intermediates, and chemical additives.
4. Packaging, Storage & International Shipping (Hazardous Goods Information)
Packaging Standard
We adopt standard international export packaging for Tobias Acid CAS 81-16-3 to ensure safe long-distance transportation. The standard package is 25kg plastic-lined iron drum or kraft paper drum. Customized packaging options including 10kg, 50kg and ton drums are available upon customer requests. All packaging materials are waterproof, moisture-proof and pressure-resistant, fully adapted to international ocean freight and long-distance logistics.
Storage Requirements
For stored Tobias Acid, please place the products in a dry, cool and well-ventilated warehouse, keeping away from direct sunlight, high temperature, humid environment, oxidants, strong acids and alkaline substances to prevent chemical deterioration. Always keep the packaging tightly sealed to avoid moisture absorption and agglomeration. The optimal storage temperature is 10-30℃, with a valid shelf life of 24 months under standardized storage conditions.
International Shipping & Hazardous Goods Identification
Hazardous Classification: Tobias Acid (CAS 81-16-3) is classified as non-dangerous goods for all international transportation
modes UN Number: No UN number (non-hazardous fine chemical intermediate) Transport Instructions: As a non-hazardous
chemical, our bulk Tobias Acid can be shipped via general sea freight, air freight and land transport without complicated dangerous
goods declaration procedures. We support FCL, LCL and mixed transportation, covering major global ports. Professional export
packaging and cargo fixing technology ensure zero damage during international ocean transportation.
5. Enterprise Introduction & Production Capacity
Founded in 2001, our enterprise is one of the most professional and reliable Tobias Acid manufacturers and suppliers in China. With more than 20 years of focused experience in fine chemical intermediate R&D and production, we have built a complete industrial chain covering independent R&D, standardized production, strict quality inspection and global export trade, serving professional chemical clients from over 80 countries worldwide.
Superior Production Strength: Our modern chemical factory covers 100 acres, equipped with 5 full-automatic professional production lines dedicated to naphthalene-based intermediates including Tobias Acid. Intelligent standardized production realizes large-scale output, sufficient spot inventory and stable delivery cycle, fully supporting customers’ trial orders, bulk orders and long-term exclusive OEM cooperation.
Professional R&D Core Competitiveness: Our R&D team accounts for more than 20% of the total staff, forming a high-precision professional technical team focusing on Tobias Acid and similar chemical intermediates. We independently develop and optimize core production processes, precision detection methods and full-process solid-liquid-gas waste treatment technologies. While improving the purity and yield of Tobias Acid products, we strictly comply with international environmental protection standards, providing green, high-quality and cost-effective chemical products for global buyers.
Strict Quality & One-Stop Export Service: We operate in full accordance with ISO international quality management system. Every batch of exported Tobias Acid CAS 81-16-3 undergoes strict laboratory testing before delivery. With complete factory qualifications and export documents, we provide one-stop customized export solutions for global fine chemical distributors and downstream manufacturers.
6. FAQ
Q1: What is Tobias Acid?
Tobias Acid (CAS 81-16-3), 2-Naphthylamine-1-Sulfonic Acid, is a high-value naphthalene-based organic intermediate for fine chemical synthesis. Featured by stable chemical properties and strong coupling & diazotization activity, high-purity Tobias Acid is mainly used for manufacturing industrial dyes, organic pigments and textile fluorescent whitening agents, ranking as one of the most essential raw materials in the global colorant and fine chemical industry.
Q2: What are the specifications of your Tobias Acid?
As a professional Tobias Acid supplier, we provide two mainstream high-quality grades: industrial grade (≥97% purity) and high-purity grade (≥98% purity). All Tobias Acid products meet international industry standards with ultra-low water insolubility and moisture content. We also support fully customized product indexes and specifications according to clients’ specific downstream synthesis and production needs.
Q3: What are your core advantages for export trade?
- Diversified Payment Terms: We accept multiple international payment methods including T/T, L/C, Western Union, and other flexible settlement methods to reduce customers’ trade risks.
- Free Sample Support: Free product samples are available for customers’ quality testing and laboratory verification, customers only need to bear the freight cost.
- Trial Order Acceptance: We support small trial orders to help customers verify product quality and market adaptability before bulk cooperation.
- Complete Document Support: We provide full sets of official export documents including MSDS, Certificate of Analysis (COA), factory qualification certificates, and customs declaration documents to ensure smooth customs clearance in various countries.
Q4: What is your enterprise market positioning?
We are one of China’s leading manufacturers and stable suppliers of Tobias Acid and naphthalene-based chemical intermediates. Relying on self-owned 100-acre factories, independent core R&D technologies, 5 professional production lines and mature global export system, we focus on providing high-purity, stable-supply and cost-effective Tobias Acid CAS 81-16-3 for global downstream manufacturers and chemical trading companies, and have established long-term stable strategic cooperative relationships with numerous international enterprises.
