Optical Brightener OB-1 (CAS No. 1533-45-5) is supplied by Jinan Shenghe Chemical Co., Ltd. with a typical purity of 按批次COA提供(不公开发布). Main applications include Dyes & Pigments. Bulk quantities are available with COA; purity and packaging are subject to batch COA and order confirmation.
| CAS Number | 1533-45-5 |
|---|---|
| Molecular Formula | C28H18N2O2 |
| Molecular Weight | 414.5 |
| LogP | 7.2 |
| Purity | 按批次COA提供(不公开发布) |
| Packaging | 按订单/批次确认(不公开发布) |
| Applications | Dyes & Pigments |
| Category | Dyes & Pigments |
Dyes & Pigments
COA (Certificate of Analysis) is provided with every batch. MSDS/technical data sheets and third-party test reports are available on request. Purity and packaging are subject to batch COA and order confirmation.
The CAS number of Optical Brightener OB-1 is 1533-45-5.
Typical purity is 按批次COA提供(不公开发布), supplied in 按订单/批次确认(不公开发布), with COA provided.
Main applications include Dyes & Pigments.
Email info@591daili.com or reach us on WhatsApp with the product name, CAS number and required quantity; quotes within one business day. Supplier: Jinan Shenghe Chemical Co., Ltd..
Optical Brightener OB-1 · CAS 1533-45-5 · C28H18N2O2. UNII C28H18N2O2.
| CAS Registry Number | 1533-45-5 |
|---|---|
| PubChem CID | 73744 |
| Molecular formula | C28H18N2O2 |
| IUPAC name | 2-[4-[2-[4-(1,3-benzoxazol-2-yl)phenyl]ethenyl]phenyl]-1,3-benzoxazole |
| UNII (FDA) | C28H18N2O2 |
| Molecular Weight | 414.5 |
|---|---|
| XLogP3 | 7.2 |
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 4 |
| Rotatable Bond Count | 4 |
| Exact Mass | 414.136827821 |
| Monoisotopic Mass | 414.136827821 |
| Topological Polar Surface Area | 52.1 |
| Heavy Atom Count | 32 |
| Formal Charge | 0 |
| Regulatory & Food Contact | FDA Cumulative Estimated Daily Intake (CEDI): FCS FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS 2,2'-(1,2-ETHENEDIYLDI-4,1-PHENYLENE)BIS(BENZOXAZOLE) 2,2'-(1,2-ETHENEDIYLDI-4,1-PHENYLENE) BIS(BENZOXAZOLE) |
|---|---|
| GHS notification summary | 44.6% (145 / 325) |
| GHS notification summary | 44.6% (145 / 325) |
|---|---|
| Reported hazard statements | H315 (14.2%), H319 (14.2%), H335 (13.2%), H411 (37.2%) |
This chemical does not meet GHS hazard criteria for 44.6% (145 of 325) of reports.
H315 (14.2%): Causes skin irritation [Warning Skin corrosion/irritation]
1533-45-5; 4,4'-Bis(2-benzoxazolyl)stilbene; DTXSID4051744; Benzoxazole, 2,2'-(1,2-ethenediyldi-4,1-phenylene)bis-; RefChem:506551; DTXCID0030299; 1,2-Bis(4-(benzo[d]oxazol-2-yl)phenyl)ethene; C28H18N2O2; Fluorescent brightener OB-1; OPTICAL BRIGHTENER 1; DTXSID10892019; CS-W011665; AC-10112; 4,4'-Bis(1,3-benzoxazol-2-yl)stilbene; 4,4'-BIS(2-BENZOXAZOLYL)STILBENE, TRANS-; Q27251389
CAS 1533-45-5; molecular formula C28H18N2O2; molecular weight — g/mol.
1533-45-5, 4,4'-Bis(2-benzoxazolyl)stilbene, DTXSID4051744, Benzoxazole, 2,2'-(1,2-ethenediyldi-4,1-phenylene)bis-, RefChem:506551, DTXCID0030299.
Documented regulatory listings: FDA Cumulative Estimated Daily Intake (CEDI): FCS; FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS; 2,2'-(1,2-ETHENEDIYLDI-4,1-PHENYLENE)BIS(BENZOXAZOLE).
44.6% of GHS notifications report no hazard classification (145 of 325).
Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.
Supplier: Jinan Shenghe Chemical Co., Ltd.
中文页面: 荧光增白剂OB-1