Target Audience: PVC Compounding Engineers, Medical Device Manufacturers, Toy Producers, and Chemical Procurement Officers in Mexico, Brazil, Colombia, and Latin America.
Key Entities & CAS: DINCH (CAS 166412-78-8), DOTP (CAS 6422-86-2), DOP / DEHP (CAS 117-81-7), DINP (CAS 28553-12-0), ESBO (CAS 8013-07-8).
Target Ports: Manzanillo & Veracruz (Mexico), Santos & Paranaguá (Brazil), Buenaventura & Cartagena (Colombia).
Target Keywords: DINCH plasticizer Mexico supplier, Non-phthalate plasticizer Latin America, DOTP vs DINCH PVC toys, Medical grade DINCH supplier China, Eco-friendly plasticizer CIF Manzanillo, DOP replacement plasticizer.
Quick Summary for Compounders & Procurement Managers
To meet the strict international rules on phthalates in children's toys and medical PVC devices (EU REACH SVHC restrictions, FDA 21 CFR and Mexico NOM-252-SSA1-2011), flexible PVC manufacturers across Mexico and Latin America increasingly replace ortho-phthalate plasticizers (DOP / DEHP and DINP) with DINCH (1,2-Cyclohexane dicarboxylic acid diisononyl ester, CAS 166412-78-8) and DOTP (Dioctyl Terephthalate, CAS 6422-86-2). Sourced directly from Ningbo Port, China to major Pacific and Gulf ports (Manzanillo, Altamira and Veracruz in Mexico, Santos in Brazil, Buenaventura in Colombia), ocean transit typically runs about 22 to 28 days depending on port and routing, with port-by-port ranges in the transit table below. DINCH offers low migration and low-temperature elasticity with no SVHC Candidate List listing, suiting medical tubing and food-contact films, while DOTP is a cost-effective drop-in replacement for general-purpose flexible PVC sheeting, artificial leather and cable extrusion.
1. Direct Overview: Transitioning Flexible PVC Formulations to Non-Phthalate Standards
Non-phthalate plasticizers—primarily DINCH (CAS 166412-78-8) and DOTP (CAS 6422-86-2)—have become the standard choice for flexible PVC exported into markets with strict rules such as Mexican NOM-252-SSA1, FDA 21 CFR and EU REACH SVHC restrictions. DINCH provides low-migration performance, low-temperature flexibility and a non-phthalate formulation for medical infusion tubes and infant toys, while DOTP serves as a cost-effective 1:1 drop-in replacement for DOP in general-purpose wire, cable, and artificial leather. DOBO Chemical supplies high-purity DINCH (typical ester content ≥ 99.5% by GC) and DOTP from Ningbo Port to Manzanillo, Veracruz, and Santos in 200kg drums, IBC totes, flexibags, and ISO Tanks.
2. Technical Parameter Matrix: DINCH vs. DOTP vs. DOP vs. DINP
Understanding physical and chemical differences helps compounding teams plan the transition without mold exudation, color degradation, or loss of mechanical tensile strength.
Table 1: Comprehensive Specification & Analytical Test Method Comparison
| Analytical Parameter | DINCH (Cyclohexanoate) | DOTP (Terephthalate) | DOP / DEHP (Ortho-Phthalate) | Test Standard / Method |
|---|---|---|---|---|
| IUPAC / Chemical Name | 1,2-Cyclohexane dicarboxylate diisononyl | Bis(2-ethylhexyl) terephthalate | Bis(2-ethylhexyl) phthalate | IUPAC Nomenclature |
| CAS Registry Number | 166412-78-8 | 6422-86-2 | 117-81-7 | Chemical Abstracts Service |
| Molecular Weight (g/mol) | ~ 424.6 | 390.6 | 390.6 | Calculated |
| Ester Content / Purity (%) | ≥ 99.5 (GC Purity) | ≥ 99.5 | ≥ 99.0 | ASTM D1045 / GC Method |
| Color Value (APHA / Pt-Co) | ≤ 20 – 40 | ≤ 30 | ≤ 30 | ASTM D1209 |
| Specific Gravity @ 20°C (g/cm³) | 0.944 – 0.954 | 0.984 – 0.988 | 0.982 – 0.986 | ASTM D4052 |
| Dynamic Viscosity @ 20°C (mPa·s) | 45 – 65 | 60 – 80 | 70 – 80 | ASTM D445 |
| Flash Point (COC, °C) | ≥ 215 | ≥ 210 | ≥ 200 | ASTM D92 |
| Acid Value (mg KOH/g) | ≤ 0.05 | ≤ 0.05 | ≤ 0.07 | ASTM D1045 |
| Water / Moisture Content (%) | ≤ 0.05 | ≤ 0.05 | ≤ 0.08 | ASTM E203 (Karl Fischer) |
| REACH SVHC Candidate List | Not listed on the SVHC Candidate List | Not listed on the SVHC Candidate List | Listed (restricted in the EU) | ECHA Substance Database |
3. Formulation Conversion & Plasticizing Efficiency Calculation
When substituting traditional DOP with DINCH or DOTP, compounders must account for subtle variations in plasticizing efficiency to maintain target Shore A hardness and elongation at break.
Plasticizing Efficiency Formula (Ep)
The required concentration of alternative plasticizer (P_alt in parts per hundred resin, phr) to match target hardness is calculated by:
P_alt = P_DOP x ( Efficiency Factor of Alternative Plasticizer / Efficiency Factor of DOP )- DOTP Efficiency Ratio: ≈ 1.00 - 1.02. In most PVC formulations (K-value 65–70), DOTP can directly replace DOP on a 1.0 : 1.0 phr basis.
- DINCH Efficiency Ratio: ≈ 1.05 - 1.08. Because of its cyclohexane saturated ring structure, 100 phr DOP is replaced by approximately 105–108 phr DINCH to achieve comparable flexibility and tactile softness.
Key Compounding Adjustments
- Fusion Temperature: DINCH and DOTP have slightly higher fusion temperatures (+5°C to +8°C compared to DOP). Raising dry-blend processing temperatures to 165°C–175°C supports complete gelation.
- Thermal Stabilizer Compatibility: Excellent synergy with Calcium-Zinc (Ca/Zn) and organic liquid stabilizers; completely eliminates heavy metal risks in medical formulations.
4. International Regulatory Compliance & Latin America Standards
Export-oriented Latin American PVC processors must verify compliance across multiple international frameworks:
Mexico Standard NOM-252-SSA1-2011
Limits on phthalate migration in toys
European REACH (EC 1907/2006)
SVHC content strictly < 0.1% w/w
US FDA 21 CFR 175.300 / 177.1210
Food-contact resins and polymers
RoHS 2.0 (Directive 2011/65/EU)
10 restricted hazardous substances
5. Export Logistics, Port Transit Times & Packaging Options
DOBO Chemical operates dedicated export warehouses near Ningbo Port, supporting fast vessel booking and moisture-proof container loading.
Typical Ocean Freight Transit Times to Major Latin America Ports
The following are typical transit times; actual schedules vary with carrier and sailing.
- Manzanillo Port (Mexico): typically 18 – 22 days (direct Pacific loop)
- Veracruz Port (Mexico): typically 28 – 35 days (via transshipment)
- Santos Port (Brazil): typically 32 – 38 days
- Buenaventura Port (Colombia): typically 22 – 26 days
Packaging Configurations
- 200 kg Galvanized Iron Drums: 80 drums / 20ft FCL (16.0 MT net weight)
- 1,000 kg UN-Certified IBC Totes: 18–20 IBCs / 20ft FCL (18.0–20.0 MT net weight)
- 24,000-Liter Multi-layer Flexibags: up to 22.0 MT net payload per container (lowest per-ton shipping cost)
- 24,000-Liter ISO Tank Containers: 21.0 to 24.0 MT for high-volume automated compounding facilities
6. Frequently Asked Questions (FAQ) for Compounding Engineers
7. Laboratory Verification & Fact-Checking
- Technical review: DOBO Chemical Applied Polymer Lab (formulation team).
- Quality documentation: ISO 9001:2015 supply chain, FDA 21 CFR test reports and REACH SVHC declarations available on request.
- Direct export desk: sales@dobochemical.com | +86 15824288686 | https://dobochemical.com
Get a DINCH & DOTP Quote for Mexico & Latin America
Share your application, quantity and packaging preference and our team will return indicative pricing, MOQ, COA/TDS and lead time. Prices and transit times are subject to confirmation at the time of quotation.