Fluorescent Brightener 378 / Optical brightener CBS-127 cas 40470-68-6
Product Name: 4,4′-Bis(2-Methoxystyryl)biphenyl / Fluorescent Brightener CBS-127/ fluorescent Brightener 378
CAS No: 40470-68-6
Molecular Formula: C30H26O2
Molecular Weight: 418.53
Appearance:White to greencrystalline powder
Purity: 99%
Fluorescent Brightener 378 / Optical Brightener CBS-127 (CAS 40470-68-6) Comprehensive Guide
Table of Contents
1. Product Overview & Key Specifications
Fluorescent Brightener 378 (CBS-127), CAS 40470-68-6, is a high-performance stilbene derivative widely used in polymer and textile industries. Its molecular formula is C30H26O2 with a molecular weight of 418.53 g/mol.
| Parameter | Value | Competitor Comparison |
|---|---|---|
| Appearance | White to off-white powder | Superior whiteness vs. OB-1 |
| Melting Point | 216-222°C | Higher thermal stability than KSN |
| Density | 1.134 g/cm³ | Optimal for polymer blending |
| Refractive Index | 1.676 | Enhanced light dispersion |
2. Industrial Applications & Functional Advantages
Core Applications:
- Plastics Manufacturing: PVC, PS, ABS with 0.01-0.05% loading prevents yellowing
- Textile Processing: 0.1-0.3 g/L in synthetic fiber treatment
- Coatings Industry: UV-resistant formulations for automotive paints
- Cosmetic Additives: NSF-approved for personal care products
Performance Benefits:
- 98% UV absorption at 340-370 nm wavelength
- Maintains efficacy at processing temperatures ≤300°C
- Non-migrating formula ensures long-term whiteness
3. Technical Implementation Guidelines
Recommended Formulation Protocols:
| Application | Dosage | Processing Method |
|---|---|---|
| Injection Molding | 0.02-0.03% w/w | Dry blend with masterbatch |
| Fiber Spinning | 0.15-0.25% w/w | Melt compounding at 230-260°C |
4. Verified Case Studies
Case 1: Shanghai Yuyu New Materials Co., Ltd.
- Challenge: Yellowing in PVC window profiles
- Solution: 0.04% CBS-127 additive
- Result: ΔE reduction from 5.2 to 1.8 after 2000h QUV
Case 2: Guangdong Polymer Solutions
- Application: ABS electronic housings
- Loading: 0.015% masterbatch
- Outcome: 92% whiteness retention after 5-year field exposure
5. Procurement Consultation
Request technical specifications or samples:
Email: info@vivalr.com
Tel: (86) 15866781826
Global shipment available with COA/MSDS documentation.
相关产品
Chemical Name: D-PANTOTHENIC ACID
CAS No.: 79-83-4
Molecular Formula: C9H17NO5
Molecular Weight: 219.24
Appearance: Colorless or Light Yellow Oily Liquid
Chemical Name: Eicosatetraynoic acid(ETYA)
Cas No.: 1191-85-1
Molecular Fomula: C20H24O2
Molecular Weight: 296.4
Chemical Name: 3-Hydroxybutyric acid
CAS No.: 625-71-8
Molecular Formula: C4H8O3
Molecular Weight: 104.1
Appearance: White powder
Chemical Name: D-PANTOTHENIC ACID
CAS No.: 79-83-4
Molecular Formula: C9H17NO5
Molecular Weight: 219.24
Appearance: Colorless or Light Yellow Oily Liquid
Chemical Name: Tribehenin
Cas No.: 18641-57-1
Molecular Fomula: C69H134O6
Molecular Weight: 1059.8
Appearance: White waxy powder or solid
Chemical Name: Di-n-amyl disulfide
Cas No.: 112-51-6
Molecular Fomula: C10H22S2
Molecular Weight: 206.41
Chemical Name: o-Xylene
Synonyms: 1,2-Dimethylbenzene; ortho-xylene
CAS No.: 95-47-6
Molecular Formula: C8H10
Molecular Weight: 106.17
Chemical Name: Ammonium Iron(II) Sulfate
Synonyms: Diammonium iron bis(sulphate); iron (ii) ammonium sulfate
CAS No.: 10045-89-3
Molecular Formula: FeH5NO4S
Molecular Weight: 170.95
Chemical Name: alpha-Hexylcinnamaldehyde
CAS No.: 101-86-0
Molecular Formula: C15H20O
Molecular Weight: 216.32
Appearance: Yellow Liquid
Chemical Name: STODDARD SOLVENT
CAS No.: 64742-88-7
Appearance: Colorless or Light Yellow Liquid
Chemical Name: 3-Hydroxybutyric acid
CAS No.: 625-71-8
Molecular Formula: C4H8O3
Molecular Weight: 104.1
Appearance: White powder
Common English name: 5-iodo-2,3-dihydropyridazin-3-one
CAS No.: 825633-94-1
Molecular formula: C4H3IN2O
Molecular weight: 221.98
Sample: Available
评论
目前还没有评论。