A directory of where to buy chemicals in the USA, including: distributors, industrial manufacturers, bulk supplies and wholesalers of raw ingredients & finished goods.
Propylenimine. Group: Biochemicals. Alternative Names: 2-Methylaziridine-d6; 2-Methylethylenimine-d6; 1,2-Propylenimine-d6. Grades: Highly Purified. Pack Sizes: 1mg. US Biological Life Sciences.
Worldwide
Propyl ethyldithiocarbamate
Propyl ethyldithiocarbamate. Uses: Designed for use in research and industrial production. Additional or Alternative Names: Propyl ethyldithiocarbamate, EINECS 258-824-3, CID3034736, 53859-67-9. Product Category: Heterocyclic Organic Compound. CAS No. 53859-67-9. Molecular formula: C6H13NS2. Mole weight: 163.304120 [g/mol]. Purity: 0.96. IUPACName: propyl N-ethylcarbamodithioate. Canonical SMILES: CCCSC(=S)NCC. Density: 1.051g/cm³. ECNumber: 258-824-3. Product ID: ACM53859679. Alfa Chemistry ISO 9001:2015 Certified.
Propyl gallate
500g Pack Size. Group: Analytical Reagents, Biochemicals, Diagnostic Raw Materials. Formula: C10H12O5. CAS No. 121-79-9. Prepack ID 42712116-500g. Molecular Weight 212.2. See USA prepack pricing.
Propyl gallate
Propyl Gallate is widely used as an antioxidant in cosmetics, perfumes, foods and pharmaceuticals. Synonyms: 3,4,5-Trihydroxybenzoic acid propyl ester; Gallic Acid Propyl Ester; Antioxidant PG; Gallic Acid n-Propyl Ester; Hemostyptin; Marupi Gallate; NSC 2626; Progallin P; N-Propyl 3,4,5-Trihydroxybenzoate; N-Propyl Gallate. Grades: ≥95%. CAS No. 121-79-9. Molecular formula: C10H12O5. Mole weight: 212.20.
Propyl Gallate
Propyl Gallate. Group: Biochemicals. Grades: Highly Purified. CAS No. 121-79-9. Pack Sizes: 250g, 500g, 1Kg, 2Kg, 5kg. Molecular Formula: C10H12O5, Molecular Weight: 212.2. US Biological Life Sciences.
An impurity of Ropinirole.Ropinirole acts as a D2, D3, and D4 dopamine receptor agonist with highest affinity for D2. It is weakly active at the 5-HT2, and α2 receptors and is said to have virtually no affinity for the 5-HT1, GABA, mAChRs, α1, and β-adrenoreceptors. Grades: > 95%. Molecular formula: C19H28N2O HCl. Mole weight: 336.91.
Ropinirole impurity. Group: Biochemicals. Alternative Names: 4-[2-(Dipropylamino)ethyl]-1,3-dihydro-3-propylidene-2H-indol-2-one Monohydrochloride; (E/Z)-4-[2-(Dipropylamino)ethyl]-3-propylideneindolin-2-one. Grades: Highly Purified. CAS No. 221264-43-3. Pack Sizes: 5mg. US Biological Life Sciences.
Worldwide
Propyliodone
Propyliodone. Uses: Designed for use in research and industrial production. Additional or Alternative Names: Propyliodone;PROPYLIODONE(ROPYLIODONE);3,5-Diiodo-4-oxo-1(4H)-pyridineacetic acid propyl;Brosombra;Dionosil;Propiodone;Propylix. Product Category: Heterocyclic Organic Compound. CAS No. 587-61-1. Molecular formula: C16H26O. Mole weight: 234.37704. Product ID: ACM587611. Alfa Chemistry ISO 9001:2015 Certified.
Propyl laurate
Propyl laurate. Group: Biochemicals. Grades: Highly Purified. CAS No. 3681-78-5. Pack Sizes: 1g, 2g, 5g. US Biological Life Sciences.
Propyl methacrylate. Uses: This product is suitable for scientific research. Additional or Alternative Names: n-Propyl methacrylate. Product Category: Polymer/Macromolecule. Appearance: pale orange liquid. CAS No. 2210-28-8. Molecular formula: C7H12O2. Mole weight: 128.17. Purity: ≥ 97%. IUPACName: propyl 2-methylprop-2-enoate. Canonical SMILES: CCCOC(=O)C(C)=C. Density: 0.898 g/mL at 25 °C. ECNumber: 218-639-0. Product ID: ACM2210288-1. Alfa Chemistry ISO 9001:2015 Certified.
Propyl methanethiosulfonate
Propyl methanethiosulfonate. Group: Biochemicals. Alternative Names: PMTS; Methanesulfonothioic acid S-propyl ester. Grades: Highly Purified. CAS No. 24387-69-7. Pack Sizes: 50mg, 100mg, 250mg, 500mg, 1g. Molecular Formula: C4H10O2S2. US Biological Life Sciences.
Worldwide
Propyl Methanethiosulfonate (PMTS)
Reacts specifically and rapid. Group: Biochemicals. Alternative Names: PMTS. Grades: Highly Purified. Pack Sizes: 100mg. US Biological Life Sciences.
Worldwide
Propyl oleate
Propyl oleate. Uses: Designed for use in research and industrial production. Additional or Alternative Names: Propyl 9-octadecenoate. Product Category: Polymer/Macromolecule. Appearance: Clear Liquid. CAS No. 111-59-1. Molecular formula: C21H40O2. Mole weight: 324.5. IUPACName: Propyl (Z)-octadec-9-enoate. Canonical SMILES: CCCCCCCCC=CCCCCCCCC(=O)OCCC. Density: 0.8699 g/cm3. Product ID: ACM111591-1. Alfa Chemistry ISO 9001:2015 Certified.
Pharmacopeia & Metrological Institutes Standards. Uses: For analytical and research use. Group: Reagents. CAS No. 94-13-3. Pack Sizes: 200MG.
Propylparaben
Plasticizers & Phthalates. Uses: For analytical and research use. Group: Reagents. CAS No. 94-13-3. Pack Sizes: 100MG.
Propylparaben
Propylparaben (Propyl parahydroxybenzoate) is an antibacterial preservative that can be produced by plants and bacteria. Propylparaben is commonly used in cosmetics, pharmaceuticals and foods. Propylparaben disrupts follicular growth and steroidogenic function by altering cell cycle, apoptosis and steroidogenic pathways. Propylparaben also reduced sperm count and motility in rats [1] [2] [3] [4] [5] [6]. Uses: Scientific research. Group: Natural products. Alternative Names: Propyl parahydroxybenzoate; Propyl 4-hydroxybenzoate. CAS No. 94-13-3. Pack Sizes: 10 mM * 1 mL; 1 g; 5 g. Product ID: HY-N2026.
Propyl Paraben
An antimicrobial. Group: Biochemicals. Alternative Names: 4-Hydroxybenzoic Acid. Grades: Highly Purified. CAS No. 94-13-3. Pack Sizes: 1g. US Biological Life Sciences.
Worldwide
Propyl Paraben
Propyl Paraben. CAS No: 94-13-3
Sarchem Laboratories New Jersey NJ
Propyl Paraben 4-Glucuronide
Propyl Paraben 4-Glucuronide, the glucuronide conjugate of propyl paraben, and it is an antimicrobial agent used in cosmetic products. Molecular formula: C16H20O9. Mole weight: 356.32.
Propyl Paraben - Surface Coatings. SUPPLIERS TO BUSINESS CUSTOMERS ONLY.
North America & APAC
Propylparaben (Standard)
Propylparaben (Standard) is the analytical standard of Propylparaben. This product is intended for research and analytical applications. Propylparaben (Propyl parahydroxybenzoate) is an antibacterial preservative that can be produced by plants and bacteria. Propylparaben is commonly used in cosmetics, pharmaceuticals and foods. Propylparaben disrupts follicular growth and steroidogenic function by altering cell cycle, apoptosis and steroidogenic pathways. Propylparaben also reduced sperm count and motility in rats [1] [2] [3] [4] [5] [6]. Uses: Scientific research. Group: Natural products. CAS No. 94-13-3. Pack Sizes: 50 mg; 100 mg; 250 mg. Product ID: HY-N2026R.
Propyl Paraben Sulfate
Propyl Paraben Sulfate. Group: Biochemicals. Alternative Names: 4-(Sulfooxy)benzoic Acid 1-Propyl Ester. Grades: Highly Purified. CAS No. 162338-10-5. Pack Sizes: 10mg. Molecular Formula: C10H12O6S, Molecular Weight: 260.26. US Biological Life Sciences.
Worldwide
Propyl Paraben Sulfate-d7
Propyl Paraben Sulfate-d7. Group: Biochemicals. Alternative Names: 4-(Sulfooxy)benzoic Acid 1-Propyl Ester-d7. Grades: Highly Purified. Pack Sizes: 1mg. Molecular Formula: C10H5D7O6S, Molecular Weight: 267.31. US Biological Life Sciences.
Worldwide
Propylphosphonic acid anhydride
Propylphosphonic acid anhydride. Group: Biochemicals. Alternative Names: T3P; 1-Propanephosphonic anhydride; 2,4,6-Tripropyl-1,3,5,2,4,6-trioxatriphosphorinane-2,4,6-trioxide. Grades: Highly Purified. CAS No. 68957-94-8. Pack Sizes: 10g, 25g, 50g, 100g, 250g. Molecular Formula: C9H21O6P3. US Biological Life Sciences.
Worldwide
Propylpyridinium bromide
Propylpyridinium bromide. Uses: Designed for use in research and industrial production. Additional or Alternative Names: PROPYLPYRIDINIUM BROMIDE;1-PROPYLPYRIDINIUM BROMIDE;1-PROPYLPYRIDINIUM BROMIDE 98%;PYRIDINIUM,1-PROPYL-,BROMIDE;1-Propylpyridinium bromide,98%. Product Category: Heterocyclic Organic Compound. Appearance: light yellow chunks. CAS No. 873-71-2. Molecular formula: C8H12BrN. Mole weight: 202.09. Purity: 0.96. IUPACName: 1-propylpyridin-1-ium. Product ID: ACM873712. Alfa Chemistry ISO 9001:2015 Certified.
Propyl Red. Group: Biochemicals. Grades: Reagent Grade. CAS No. 2641-1-2. Pack Sizes: 5g, 25g, 100g, 250g. US Biological Life Sciences.
Worldwide
Propyl thiocyanate
Propyl thiocyanate. Uses: Designed for use in research and industrial production. Additional or Alternative Names: PROPYL THIOCYANATE;Popyl Thiocyanate;propyl rhodanate;propyl rhodanide;propyl sulfocyanide;propyl thiocyanide;1-Thiocyanatopropane;Thiocyanic acid propyl ester. Product Category: Heterocyclic Organic Compound. CAS No. 4251-16-5. Molecular formula: C4H7NS. Mole weight: 101.17. Product ID: ACM4251165. Alfa Chemistry ISO 9001:2015 Certified.
Propylthiouracil is a thyroperoxidase and 5'-deiodinase inhibitor. It is a thiouracil-derived drug used to treat hyperthyroidism (including Graves' disease) by decreasing the amount of thyroid hormone produced by the thyroid gland. Besides, propylthiouracil inhibits the enzyme thyroperoxidase, which normally acts in thyroid hormone synthesis by oxidizing the anion iodide (I-) to iodine (I0), facilitating iodine's addition to tyrosine residues on the hormone precursor thyroglobulin. But propylthiouracil does not inhibit the action of the sodium-dependent iodide transporter located on follicular cells' basolateral membranes. Uses: Antimetabolites, antithyroid agents. Synonyms: 6-n-Propylthiouracil; 6-Propyl-2-thiouracil; PTU. Grades: >98%. CAS No. 51-52-5. Molecular formula: C7H10N2OS. Mole weight: 170.23.
Propylthiouracil
Propylthiouracil (6-n-Propylthiouracil), a thioamide antithyroid agent, is an orally active thyroperoxidase and type-1 deiodinase (DIO1) inhibitor. Propylthiouracil can be used for the Graves disease and hyperthyroidism research [1]. Uses: Scientific research. Group: Signaling pathways. Alternative Names: 6-n-Propylthiouracil; 6-Propyl-2-thiouracil; PTU. CAS No. 51-52-5. Pack Sizes: 10 mM * 1 mL; 100 mg; 500 mg. Product ID: HY-B0346.
Propylthiouracil
Antihyperthyroid. Has been used to promote fattening. This substance is reasonably anticipated to be a human carcinogen. Group: Biochemicals. Alternative Names: 2,3-Dihydro-6-propyl-2-thioxo-4(1H)pyrimidinone;6-Propyl-2-thiouracil;2-Mercapto-4-hydroxy-6-n-propylpyrimidine; 2-Mercapto-6-propylpyrimidin-4-ol; Procasil; Propacil; Propycil; Propyl-Thiorist; NSC 6498; NSC 70461. Grades: Highly Purified. CAS No. 51-52-5. Pack Sizes: 1g. US Biological Life Sciences.
Worldwide
Propylthiouracil-d5
Labeled antihyperthyroid. Has been used to promote fattening. This substance is reasonably anticipated to be a human carcinogen. Group: Biochemicals. Alternative Names: 2,3-Dihydro-6-(propyl-d5)-2-thioxo-4(1H)pyrimidinone; 6-(Propyl-d5)-2-thiouracil;2-Mercapto-4-hydroxy-6-n-propyl-d5-pyrimidine; 2-Mercapto-6-(propyl-d5)-pyrimidin-4-ol; Procasil-d5; Propacil-d5; Propycil-d5. Grades: Highly Purified. Pack Sizes: 2.5mg. US Biological Life Sciences.
A protected metabolite of Propylthiouracil. Propylthiouracil N- β-D-Glucuronide (P838315) derivative. Group: Biochemicals. Alternative Names: 1-Deoxy-1-(3,4-dihydro-4-oxo-6-propyl-d5-2-thioxo-1(2H)-pyrimidinyl)-2,3,4-tri-O-acetyl- β-D-Glucopyranuronic Acid Methyl Ester. Grades: Highly Purified. Pack Sizes: 1mg. US Biological Life Sciences.
Worldwide
Propylthiouracil N-b-D-glucuronide
Propylthiouracil N-b-D-glucuronide, an essential pharmaceutical compound, revolutionizes the treatment of hyperthyroidism. With its remarkable ability to inhibit enzymes, this compound exerts its therapeutic effects by meticulously obstructing the production of thyroid hormones. By expertly interfering with the conversion process of T4 to T3, it offers respite from the distressing symptoms associated with hyperthyroidism. Among these symptoms are accelerated heart rate, unwanted weight loss, and excessive perspiration. Synonyms: 1-Deoxy-1-(3,4-dihydro-4-oxo-6-propyl-2-thioxo-1(2H)-pyrimidinyl)- b-D-glucopyranuronic acid. CAS No. 33987-24-5. Molecular formula: C13H18N2O7S. Mole weight: 346.36.
Propylthiouracil N- β-D-Glucuronide
A metabolite of Propylthiouracil. Group: Biochemicals. Alternative Names: 1-Deoxy-1-(3,4-dihydro-4-oxo-6-propyl-2-thioxo-1(2H)-pyrimidinyl) β-D-Glucopyranuronic Acid. Grades: Highly Purified. CAS No. 33987-24-5. Pack Sizes: 1mg. US Biological Life Sciences.
Worldwide
Propylthiouracil N- β-D-Glucuronide Sodium Salt
Salt of Propylthiouracil N- β-D-Glucuronide (P838315), also a metabolite of Propylthiouracil (P838310). Group: Biochemicals. Alternative Names: 1-Deoxy-1-(3,4-dihydro-4-oxo-6-propyl-2-thioxo-1(2H)-pyrimidinyl) β-D-Glucopyranuronic Acid Sodium Salt. Grades: Highly Purified. Pack Sizes: 1mg. US Biological Life Sciences.
Worldwide
Propyltriacetoxysilane
Propyltriacetoxysilane. Uses: Mainly used for rtv-i silicone rubber was silicone rubber, glass (acid) crosslinking agent. used in silicone sealant (acid) alternative ethyl crosslinking agent, achieve the same use effect. the price is lower than that of ethyl can greatly reduce the production cost. Additional or Alternative Names: Propyl-Silanetriotriacetate. Product Category: Siloxanes. Appearance: Colorless transparent liquid. CAS No. 17865-07-5. Molecular formula: C3H7Si(OCCH3)3. Mole weight: 248.3 g/mol. Purity: 0.98. IUPACName: [diacetyloxy(propyl)silyl]acetate. Canonical SMILES: CCC[Si](OC(=O)C)(OC(=O)C)OC(=O)C. Density: 1.112 g/mL. ECNumber: 241-816-9. Product ID: ACM17865075. Alfa Chemistry ISO 9001:2015 Certified. Categories: propylsilanetriyl triacetate.
Propyltriethoxysilane
Propyltriethoxysilane. Uses: Designed for use in research and industrial production. Product Category: Siloxanes. Appearance: Transparent liquid. CAS No. 314270-00-3. Molecular formula: C9H22O3Si. Mole weight: 206.35. Purity: 95%+. Product ID: ACM314270003. Alfa Chemistry ISO 9001:2015 Certified. Categories: n-Propyltriethoxysilane.
Propyltriphenylphosphonium iodide
Propyltriphenylphosphonium iodide. Uses: Designed for use in research and industrial production. Additional or Alternative Names: FT-0658512; propyltriphenylphosphonium iodide; n-propyl-triphenyl phosphonium iodide; TC-154254; DTXSID40450681; CTK4C3683; 14350-50-6; AKOS015915195; AX8234207; NSC-122261. Product Category: Heterocyclic Organic Compound. CAS No. 14350-50-6. Molecular formula: C21H22IP. Mole weight: 432.285g/mol. IUPACName: triphenyl(propyl)phosphanium;iodide. Canonical SMILES: CCC[P+](C1=CC=CC=C1)(C2=CC=CC=C2)C3=CC=CC=C3.[I-]. Product ID: ACM14350506. Alfa Chemistry ISO 9001:2015 Certified. Categories: triphenyl(propyl)phosphonium iodide.
Propyltris(Trimethylsiloxy)Silane
Propyltris(Trimethylsiloxy)Silane. Uses: Designed for use in research and industrial production. Product Category: Siloxanes. Appearance: Transparent liquid. CAS No. 60111-46-8. Molecular formula: C12H34O3Si. Mole weight: 338.74 g/mol. Purity: 95%+. Product ID: ACM60111468. Alfa Chemistry ISO 9001:2015 Certified.
Propyl Vinyl Ether (stabilized with KOH)
Propyl Vinyl Ether (stabilized with KOH). Uses: Designed for use in research and industrial production. Product Category: Vinyl Monomers. Appearance: Colorless to Almost Colorless Clear Liquid. CAS No. 764-47-6. Molecular formula: C5H10O. Mole weight: 86.13 g/mol. Purity: 97.0%(GC). Product ID: ACM-MO-764476. Alfa Chemistry ISO 9001:2015 Certified.
Propynal. Group: Biochemicals. Grades: Highly Purified. CAS No. 624-67-9. Pack Sizes: 500mg, 1g, 2g, 5g, 10g. Molecular Formula: C3H2O. US Biological Life Sciences.
Worldwide
Propynal
100mg Pack Size. Group: Building Blocks, Organics. Formula: C3H2O. CAS No. 624-67-9. Prepack ID 72325492-100mg. Molecular Weight 54.05. See USA prepack pricing.
Propyne
≥97%. Uses: For analytical and research use. Group: Compressed and liquefied gases. CAS No. 74-99-7. Pack Sizes: 25G, 100G. Mole Weight: 40.06. EC Number: 200-828-4. Catalog: AP74997. Assay: ≥97%.
Propynol Ethoxylate
Propynol Ethoxylate. Group: Biochemicals. Alternative Names: 2-(2-Propyn-1-yloxy)ethanol; 2-(2-Propynyloxy)ethanol; 2-Propynoxyethanol; 3-(2-Hydroxyethoxy)-1-propyne; 4-Oxa-1-hexyn-6-ol; Ethylene Glycol Monopropargyl Ether. Grades: Highly Purified. CAS No. 3973-18-0. Pack Sizes: 10g. Molecular Formula: C5H8O2, Molecular Weight: 100.12. US Biological Life Sciences.
Worldwide
Propyphenazone
Analgesic; antipyretic; anti-inflammatory. Group: Biochemicals. Alternative Names: 1,2-Dihydro-1,5-dimethyl-4-(1-methylethyl)-2-phenyl-3H-pyrazol-3-one; 1-Phenyl-2,3-dimethyl-4-isopropyl-3-pyrazolin-5-one; 4-Isopropyl-2,3-dimethyl-1-phenyl-3-pyrazolin-5-one; 4-Isopropylantipyrine; 4-Isopropylphenazone; Arantil P; Budirol; Causyth; Cibalgina; Eufibron; Isopropchin; Isopropylantipyrin; Isopropylantipyrine; Isopropylphenazone; Isopropyrine; Larodon; Propyfenazone. Grades: Highly Purified. CAS No. 479-92-5. Pack Sizes: 5g. US Biological Life Sciences.
Worldwide
Propyphenazone
Propyphenazone (4-Isopropylantipyrine) is an orally active nonacidic pyrazole nonsteroidal anti-inflammatory drug (NSAID). Propyphenazone is a weak nonselective COX inhibitor. Propyphenazone has the effect of reducing pain and antipyretic activity with minimal anti-inflammatory activity [1] [2]. Uses: Scientific research. Group: Signaling pathways. Alternative Names: 4-Isopropylantipyrine; Isopropylphenazone. CAS No. 479-92-5. Pack Sizes: 10 mM * 1 mL; 500 mg; 1 g. Product ID: HY-A0273.
Propyphenazone-D3
Propyphenazone-D3. Uses: For analytical and research use. Group: Impurity standards. CAS No. 162935-29-7. Molecular Formula: C14H15D3N2O. Mole Weight: 233.33. Catalog: APB162935297.
Propyphenazone EP impurity A (Antipyrine)
Propyphenazone EP impurity A (Antipyrine). Uses: For analytical and research use. Group: Impurity standards. CAS No. 60-80-0. Molecular Formula: C11H12N2O. Mole Weight: 188.23. Catalog: APB60800.
Propyphenazone EP impurity B
An impurity of Propyphenazone. Propyphenazone is a derivative of phenazone with similar analgesic and antipyretic effects. Grades: > 95%. Molecular formula: C14H18N2O. Mole weight: 230.31.
Propyphenazone EP impurity C
An impurity of Propyphenazone. Propyphenazone is a derivative of phenazone with similar analgesic and antipyretic effects. Grades: > 95%. Molecular formula: C17H24N2O. Mole weight: 272.39.
Propyphenazone EP impurity E
An impurity of Propyphenazone. Propyphenazone is a derivative of phenazone with similar analgesic and antipyretic effects. Grades: > 95%. Molecular formula: C14H18N2O. Mole weight: 230.31.
Propyzamide
Propyzamide is a anti-microtubule herbicide [1]. Uses: Scientific research. Group: Signaling pathways. Alternative Names: Kerb; RH 315. CAS No. 23950-58-5. Pack Sizes: 1 g; 5 g; 10 g. Product ID: HY-B1883.
Propyzamide
Selective pre-emergence herbicide. Group: Biochemicals. Alternative Names: 3,5-Dichloro-N-(1,1-dimethyl-2-propyn-1-yl)benzamide; 3, 5-Dichloro-N- (1, 1-dimethylpropynyl) benzamide; Kerb; Kerb 50W; N-(1,1-Dimethylpropynyl)-3,5-dichlorobenzamide; Pronamide; RH 315. Grades: Highly Purified. CAS No. 23950-58-5. Pack Sizes: 1g. US Biological Life Sciences.
Worldwide
Prosapogenin A
Prosapogenin A. Group: Biochemicals. Alternative Names: Saponin Ta; Progenin III; Ophiopogonin C?; Prosapogenin D?1. Grades: Plant Grade. CAS No. 19057-67-1. Pack Sizes: 10mg. Molecular Formula: C39H62O12, Molecular Weight: 722.902. US Biological Life Sciences.
Worldwide
Prosaptide TX14(A)
Prosaptide TX14(A) is a potent agonist of G protein-coupled receptors GPR37 and GPR37L1 (EC50 values are 7 and 5 nM, respectively). Prosaptide Tx 14(A) is the active fragment of prosaposin, a secreted neuroprotective and glioprotective factor. Synonyms: H-Thr-D-Ala-Leu-Ile-Asp-Asn-Asn-Ala-Thr-Glu-Glu-Ile-Leu-Tyr-OH trifluoroacetate salt; Prosaptide trifluoroacetate salt; TX14(A) trifluoroacetate salt; TXLIDNNATEEILY (Modifications: Ala-2 = D-Ala) trifluoroacetate salt; TaLIDNNATEEILY trifluoroacetate salt. CAS No. 196391-82-9. Molecular formula: C69H110N16O26. Mole weight: 1579.72.