Tetraethyl p-Xylylenediphosphonate - ≥95%(HPLC) , CAS No.4546-04-7

CAS: 4546-04-7 Cat. No.: T161844 Molecular Weight: 378.34 EC Number: 224-902-0 PubChem CID: 78303
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GRADE & PURITY ≥95%(HPLC)
Synonyms
NSC 203064 | p-Bis(diethoxyphosphono)xylene | p-Xylylenediphosphonic Acid Tetraethyl Ester | NSC203064 | NSC-203064 | Spenitol | AS-70113 | SCHEMBL3375825 | Tetraethyl p-xylylenediphosphonate | SY050927 | tetraethyl (benzene-1,4-diyldimethanediyl)bis(phos
Storage
Room temperature
Shipped In
Normal
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
5g
T161844-5g
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.

$9.90

$14.90
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25g
T161844-25g
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.

$18.90

$28.90
Save $10.00 (34.60%)
100g
T161844-100g
1

$65.90

$98.90
Save $33.00 (33.37%)
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Why this grade

≥95%(HPLC) for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

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Storage & shipping

Room temperature Ships Normal Check lot-specific COA for exact specifications.

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Quality documents

SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.

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Literature proof

Cited in 2 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Specifications

Synonyms
NSC 203064 | p-Bis(diethoxyphosphono)xylene | p-Xylylenediphosphonic Acid Tetraethyl Ester | NSC203064 | NSC-203064 | Spenitol | AS-70113 | SCHEMBL3375825 | Tetraethyl p-xylylenediphosphonate | SY050927 | tetraethyl (benzene-1, 4-diyldimethanediyl)bis(phos
Specifications & Purity
≥95%(HPLC)
Storage
Room temperature
Shipped In
Normal
Purity
≥95%(HPLC)
Names and Identifiers
Canonical SmilesCCOP(=O)(CC1=CC=C(C=C1)CP(=O)(OCC)OCC)OCC
IUPAC Name1,4-bis(diethoxyphosphorylmethyl)benzene
InChIKeyXTKQUBKFKSHRPS-UHFFFAOYSA-N
INCHI1S/C16H28O6P2/c1-5-19-23(17,20-6-2)13-15-9-11-16(12-10-15)14-24(18,21-7-3)22-8-4/h9-12H,5-8,13-14H2,1-4H3
Isomeric SMILES CCOP(=O)(CC1=CC=C(C=C1)CP(=O)(OCC)OCC)OCC
PubChem CID 78303
Molecular Weight 378.34
Reaxy-Rn 2952678

Documentation

📋 Safety Data Sheet (SDS)

Comprehensive hazard, handling, storage, and regulatory compliance document.

Download SDS →

✅ Certificate of Analysis (COA)

Lot-specific quality data. Enter your lot number to retrieve the exact COA.

Look up COA →

📊 Datasheet

Quick-reference summary of product specifications and applications.

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🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

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Advanced Data

Taxonomic Classification

Taxonomy Tree

KingdomOrganic compounds
SuperclassOrganic acids and derivatives
ClassOrganic phosphonic acids and derivatives
SubclassPhosphonic acid diesters
Intermediate Tree Nodes Not available
Direct ParentDialkyl alkylphosphonates
Alternative Parents Phosphonic acid esters  Benzene and substituted derivatives  Organopnictogen compounds  Organophosphorus compounds  Organooxygen compounds  Organic oxides  Hydrocarbon derivatives  
Molecular FrameworkAromatic homomonocyclic compounds
Substituents Dialkyl alkylphosphonate - Benzenoid - Phosphonic acid ester - Monocyclic benzene moiety - Organic oxygen compound - Organopnictogen compound - Organic oxide - Hydrocarbon derivative - Organophosphorus compound - Organooxygen compound - Aromatic homomonocyclic compound
DescriptionThis compound belongs to the class of organic compounds known as dialkyl alkylphosphonates. These are compounds containing a phosphonic acid that is diesterified with alkyl groups, and the phosphorus atom is also directly attached to an alkyl group.
External Descriptors Not available
3D Structure
Interactive Chemical Structure Model





Certificates(CoA,COO,BSE/TSE and Analysis Chart)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:

Find and download the COA for your product by matching the lot number on the packaging.

4 results found

Lot NumberCertificate TypeDateItem
H2103417Certificate of AnalysisMay 07, 2024 T161844
H2103418Certificate of AnalysisMay 07, 2024 T161844
H2103419Certificate of AnalysisMay 07, 2024 T161844
C2010036Certificate of AnalysisDec 14, 2022 T161844
Chemical and Physical Properties
SolubilitySoluble in water
Boil Point(°C)220°C/7mmHg
Melt Point(°C)73-78℃
Molecular Weight378.340 g/mol
XLogP31.500
Hydrogen Bond Donor Count0
Hydrogen Bond Acceptor Count6
Rotatable Bond Count12
Exact Mass378.136 Da
Monoisotopic Mass378.136 Da
Topological Polar Surface Area71.100 Ų
Heavy Atom Count24
Formal Charge0
Complexity374.000
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
The total count of all stereochemical bonds0
Covalently-Bonded Unit Count1
Citations of This Product
References
1. Maowen Chen, Dong Wang, Menghuan Li, Ye He, Tingting He, Maohua Chen, Yan Hu, Zhong Luo, Kaiyong Cai.  (2022)  Nanocatalytic Biofunctional MOF Coating on Titanium Implants Promotes Osteoporotic Bone Regeneration through Cooperative Pro-osteoblastogenesis MSC Reprogramming.  ACS Nano,      [PMID:36106984] [10.1021/acsnano.2c07200]
2. Zhang Ge, Yao Meng, Cao Jing, Cui Yumeng, Jiao Yunhong, Zhang Zhaosheng, Pan Ye-Tang, Qu Hongqiang, Xu Jianzhong.  (2025)  A graphene@MOFs hybrid based on mechanical force and with the help of a phosphate-containing ligand was obtained for the high efficiency flame retardant of EP.  Advanced Composites and Hybrid Materials,  (4): (1-13).  [PMID:] [10.1007/s42114-025-01390-2]
Solution Calculators
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