A directory of where to buy chemicals in the USA, including: distributors, industrial manufacturers, bulk supplies and wholesalers of raw ingredients & finished goods.
Mutagen X (MX) is a chlorinated furanone that accounts for more of the mutagenic activity of drinking water than any other disinfection byproduct. Group: Biochemicals. Alternative Names: MX; MX (Bacterial Mutagen); Mutagen X. Grades: Highly Purified. CAS No. 77439-76-0. Pack Sizes: 2.5mg. US Biological Life Sciences.
3-Chloro-4- (difluoromethoxy) benzoic Acid Methyl Ester is an intermediate in the synthesis of 4- (Bromomethyl) -2-chloro-1- (difluoromethoxy) benzene (B687530), which is used in the synthesis of herbicides. Group: Biochemicals. Grades: Highly Purified. CAS No. 1040723-84-9. Pack Sizes: 1g, 10g. Molecular Formula: C9H7ClF2O3, Molecular Weight: 236.6. US Biological Life Sciences.
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3-Chloro-4- (difluoromethoxy) phenyl isocyanate
3-Chloro-4- (difluoromethoxy) phenyl isocyanate. Group: Biochemicals. Grades: Highly Purified. CAS No. 39479-97-5. Pack Sizes: 25mg, 50mg. Molecular Formula: C8H4ClF2NO2, Molecular Weight: 219.57. US Biological Life Sciences.
3'-Chloro-4'-fluoro-3-(2-methoxyphenyl)propiophenone. Uses: Designed for use in research and industrial production. Additional or Alternative Names: 3'-CHLORO-4'-FLUORO-3-(2-METHOXYPHENYL)PROPIOPHENONE. Product Category: Heterocyclic Organic Compound. CAS No. 898770-18-8. Molecular formula: C16H14ClFO2. Mole weight: 292.73. Purity: 0.96. IUPACName: 1-(3-chloro-4-fluorophenyl)-3-(2-methoxyphenyl)propan-1-one. Canonical SMILES: COC1=CC=CC=C1CCC(=O)C2=CC(=C(C=C2)F)Cl. Density: 1.228g/cm³. Product ID: ACM898770188. Alfa Chemistry ISO 9001:2015 Certified.
3'-Chloro-4'-fluoro-3-(2-thiomethylphenyl)propiophenone. Uses: Designed for use in research and industrial production. Additional or Alternative Names: 3'-CHLORO-4'-FLUORO-3-(2-THIOMETHYLPHENYL)PROPIOPHENONE. Product Category: Heterocyclic Organic Compound. CAS No. 898780-13-7. Molecular formula: C16H14ClFOS. Mole weight: 308.8. Purity: 0.96. IUPACName: 1-(3-chloro-4-fluorophenyl)-3-(2-methylsulfanylphenyl)propan-1-one. Density: 1.27g/cm³. Product ID: ACM898780137. Alfa Chemistry ISO 9001:2015 Certified.
3-Chloro-4-fluoro-3'-(3-pyrrolinomethyl)benzophenone. Uses: Designed for use in research and industrial production. Additional or Alternative Names: 3-CHLORO-4-FLUORO-3'-(3-PYRROLINOMETHYL) BENZOPHENONE. Product Category: Heterocyclic Organic Compound. CAS No. 898749-15-0. Molecular formula: C18H15ClFNO. Mole weight: 315.77. Purity: 0.96. IUPACName: (3-chloro-4-fluorophenyl)-[3-(2,5-dihydropyrrol-1-ylmethyl)phenyl]methanone. Canonical SMILES: C1C=CCN1CC2=CC=CC(=C2)C(=O)C3=CC(=C(C=C3)F)Cl. Density: 1.285g/cm³. Product ID: ACM898749150. Alfa Chemistry ISO 9001:2015 Certified.
3-Chloro-4-fluoro-3'-thiomorpholinomethyl benzophenone. Uses: Designed for use in research and industrial production. Additional or Alternative Names: 3-CHLORO-4-FLUORO-3'-THIOMORPHOLINOMETHYL BENZOPHENONE. Product Category: Heterocyclic Organic Compound. CAS No. 898763-34-3. Molecular formula: C18H17ClFNOS. Mole weight: 349.85. Purity: 0.96. IUPACName: (3-chloro-4-fluorophenyl)-[3-(thiomorpholin-4-ylmethyl)phenyl]methanone. Canonical SMILES: C1CSCCN1CC2=CC=CC(=C2)C(=O)C3=CC(=C(C=C3)F)Cl. Density: 1.297g/cm³. Product ID: ACM898763343. Alfa Chemistry ISO 9001:2015 Certified.
3-Chloro-4-fluoro-5-methylphenylboronic acid, pinacol ester. Group: Biochemicals. Grades: Highly Purified. CAS No. 1402238-26-9. Pack Sizes: 25mg, 50mg. Molecular Formula: C13H19BClFO3, Molecular Weight: 288.550999999999. US Biological Life Sciences.
Worldwide
3-Chloro-4-fluoro-5-nitrophenylboronic acid
3-Chloro-4-fluoro-5-nitrophenylboronic acid. Uses: Designed for use in research and industrial production. Product Category: Boronic Acids. CAS No. 850568-73-9. Molecular formula: C6H4BClFNO4. Mole weight: 219.36. Purity: 0.95. Product ID: ACM850568739. Alfa Chemistry ISO 9001:2015 Certified.
3-Chloro-4-fluoroacetophenone
3-Chloro-4-fluoroacetophenone. Group: Biochemicals. Grades: Highly Purified. CAS No. 2923-66-2. Pack Sizes: 10g, 25g, 50g, 100g. Molecular Formula: C8H6ClFO. US Biological Life Sciences.
Worldwide
3-Chloro-4-fluoroaniline
4-Fluoro-3-chloroaniline, is an organic Fluorinated building block used for the synthesis of pharmaceutical and biologically active compounds such as, novel 6-Fluorobenzothiazole-substituted pyrazole analogues, having antiinflammatory activity. Uses: Designed for use in research and industrial production. Additional or Alternative Names: 3-Chloro-4-fluorobenzenamine;CHLOROFLUOROANILINE;para-fluoro-meta-chloroaniline;Benzenamine,3-chloro-4-fluoro;4-fluoro-3-chloro-aniline. Product Category: Aryl Fluorinated Building Blocks. Appearance: White crystalline powder. CAS No. 367-21-5. Molecular formula: C6H5ClFN. Mole weight: 145.56. Density: 1.226 g/cm³. Product ID: ACM367215. Alfa Chemistry ISO 9001:2015 Certified.
3-Chloro-4-fluoroaniline
Gefitinib Impurity V is an organic Fluorinated building block used for the synthesis of pharmaceutical and biologically active compounds. It has antiinflammatory activity. Synonyms: 3-chloro-4-fluoroaniline. Grades: > 95 %. CAS No. 367-21-5. Molecular formula: C6H5ClFN. Mole weight: 145.56.
3-Chloro-4-fluoroaniline 99+%
3-Chloro-4-fluoroaniline 99+%. Group: Biochemicals. Grades: Reagent Grade. CAS No. 367-21-5. Pack Sizes: 100g, 250g, 25g, 1Kg, 5Kg. US Biological Life Sciences.
Worldwide
3-Chloro-4-fluoroanisole
3-Chloro-4-fluoroanisole. Group: Biochemicals. Grades: Highly Purified. CAS No. 202925-07-3. Pack Sizes: 100mg, 250mg. Molecular Formula: C7H6ClFO, Molecular Weight: 160.57. US Biological Life Sciences.
Worldwide
3-Chloro-4-fluorobenzaldehyde
3-Chloro-4-fluorobenzaldehyde. Uses: Designed for use in research and industrial production. Additional or Alternative Names: Benzaldehyde, 3-chloro-4-fluoro-. Product Category: Aryl Fluorinated Building Blocks. CAS No. 34328-61-5. Molecular formula: C7H4ClFO. Mole weight: 158.56. Purity: 98%+. IUPACName: 3-chloro-4-fluorobenzaldehyde. Canonical SMILES: C1=CC(=C(C=C1C=O)Cl)F. Density: 1.331 g/ml. Product ID: ACM34328615. Alfa Chemistry ISO 9001:2015 Certified.
3-Chloro-4-fluorobenzaldehyde oxime
3-Chloro-4-fluorobenzaldehyde oxime. Uses: Designed for use in research and industrial production. Additional or Alternative Names: MolPort-002-920-247, MolPort-019-937-796, HMS1448P21, 253308-63-3, SEW00875, CCG-48099, IDI1_017722, (E)-3-Chloro-4-fluorobenzaldehyde oxime, AK133295, SR-01000637670-1. Product Category: Heterocyclic Organic Compound. CAS No. 253308-63-3. Molecular formula: C7H5ClFNO. Mole weight: 173.572. Purity: 0.96. IUPACName: (NE)-N-[(3-chloro-4-fluorophenyl)methylidene]hydroxylamine. Canonical SMILES: C1=CC(=C(C=C1C=NO)Cl)F. Product ID: ACM253308633. Alfa Chemistry ISO 9001:2015 Certified.
3-Chloro-4-fluoro-benzamidine, HCl
3-Chloro-4-fluoro-benzamidine, HCl. Group: Biochemicals. Grades: Highly Purified. CAS No. 477844-52-3. Pack Sizes: 25mg, 50mg. Molecular Formula: C7H7Cl2FN2, Molecular Weight: 209.05. US Biological Life Sciences.
Worldwide
3-Chloro-4-fluoro-benzamidine hydrochloride
3-Chloro-4-fluoro-benzamidine hydrochloride. Group: Biochemicals. Grades: Highly Purified. CAS No. 477844-52-3. Pack Sizes: 250mg, 500mg, 1g, 2g, 5g. US Biological Life Sciences.
3-Chloro-4-fluoro-benzamidine hydrochloride ≥95% (HPLC). Group: Biochemicals. Grades: Reagent Grade. Pack Sizes: 250mg, 1g, 5g. US Biological Life Sciences.
Worldwide
3-Chloro-4-fluorobenzenesulfonyl chloride
3-Chloro-4-fluorobenzenesulfonyl chloride. Group: Biochemicals. Grades: Highly Purified. CAS No. 91170-93-3. Pack Sizes: 500mg, 1g, 2g, 5g, 10g. Molecular Formula: C6H3Cl2FO2S. US Biological Life Sciences.
Worldwide
3-Chloro-4-fluorobenzenesulfonyl chloride
3-Chloro-4-fluorobenzenesulfonyl chloride. Uses: Designed for use in research and industrial production. Product Category: Aryl Fluorinated Building Blocks. CAS No. 91170-93-3. Mole weight: 229.06. Product ID: ACM91170933. Alfa Chemistry ISO 9001:2015 Certified.
3-Chloro-4-fluorobenzoic acid
3-Chloro-4-fluorobenzoic acid. Group: Biochemicals. Grades: Highly Purified. CAS No. 403-16-7. Pack Sizes: 500mg, 1g. Molecular Formula: C7H4ClFO2, Molecular Weight: 174.56. US Biological Life Sciences.
Worldwide
3-Chloro-4-fluorobenzonitrile
3-Chloro-4-fluorobenzonitrile. Uses: Designed for use in research and industrial production. Additional or Alternative Names: Benzonitrile, 3-chloro-4-fluoro-. Product Category: Aryl Fluorinated Building Blocks. CAS No. 117482-84-5. Molecular formula: C7H3ClFN. Mole weight: 155.56. Purity: 98%+. IUPACName: 3-chloro-4-fluorobenzonitrile. Canonical SMILES: C1=CC(=C(C=C1C#N)Cl)F. Density: 1.376 g/ml. Product ID: ACM117482845. Alfa Chemistry ISO 9001:2015 Certified.
3-Chloro-4-fluorobenzonitrile
3-Chloro-4-fluorobenzonitrile. Group: Biochemicals. Grades: Highly Purified. CAS No. 117482-84-5. Pack Sizes: 50g, 100g, 250g, 500g, 1kg. Molecular Formula: C7H3ClFN. US Biological Life Sciences.
Worldwide
3-Chloro-4-fluorobenzotrifluoride
3-Chloro-4-fluorobenzotrifluoride acts as a reagent in the synthesis of β-substituted 3-(4-aryloxyaryl)propanoic acid as GPR40 agonists. Group: Biochemicals. Grades: Highly Purified. CAS No. 78068-85-6. Pack Sizes: 500mg, 1g. Molecular Formula: C7H3ClF4. US Biological Life Sciences.
Worldwide
3-Chloro-4-fluorobenzylamine
3-Chloro-4-fluorobenzylamine. Group: Biochemicals. Grades: Highly Purified. CAS No. 72235-56-4. Pack Sizes: 10g, 25g, 50g, 100g. US Biological Life Sciences.
Worldwide
3-Chloro-4-fluorobenzyl bromide
3-Chloro-4-fluorobenzyl bromide. Uses: Designed for use in research and industrial production. Product Category: Bromine Series. CAS No. 192702-01-5. Molecular formula: C7H4BrF3. Mole weight: 223.47. Product ID: ACM192702015. Alfa Chemistry ISO 9001:2015 Certified. Categories: 4-(bromomethyl)-2-chloro-1-fluorobenzene.
3-Chloro-4-fluorobenzyl chloride
3-Chloro-4-fluorobenzyl chloride. Group: Biochemicals. Grades: Highly Purified. CAS No. 2994-69-6. Pack Sizes: 100mg, 250mg. Molecular Formula: C7H5Cl2F, Molecular Weight: 179.02. US Biological Life Sciences.
Worldwide
3-Chloro-4-fluoroiodobenzene
3-Chloro-4-fluoroiodobenzene. Uses: Designed for use in research and industrial production. Additional or Alternative Names: 2-chloro-1-fluoro-4-iodobenzene, 3-Chloro-4-fluoroiodobenzene, 156150-67-3, 2-Chloro4-iodofluorobenzene, 1-chloro-2-fluoro-5-iodobenzene, 3-chloro-4-fluoro-1-iodobenzene, 1-fluoro-2-chloro-4-iodobenzene, PubChem3433, ACMC-20an6s, SureCN80311, AC1MC5A2, AC1Q4MI1, 2-chloro-4-iodofluorobenzene, CTK4C8968, MolPort-000-153-015, ACT07755, Benzene,2-chloro-1-fluoro-4-iodo-, SBB101766, ZINC00152693, AKOS009156592. Product Category: Aryl. Appearance: Clear colourless to light yellow liquid. CAS No. 156150-67-3. Molecular formula: C6H3ClFI. Mole weight: 256.44. Purity: 0.96. IUPACName: 2-chloro-1-fluoro-4-iodobenzene. Canonical SMILES: C1=CC(=C(C=C1I)Cl)F. Density: 2.008 g/mL at 25ºC(lit.). ECNumber: 605-045-5. Product ID: ACM156150673. Alfa Chemistry ISO 9001:2015 Certified.
3-Chloro-4-fluoronitrobenzene
2-Chloro-1-fluoro-4-nitrobenzene is an intermediate used in synthesis of benzoimidolones on Ameba resin and methyl 6,7,8,9-tetrahydropyrido[1,2-a]indol-10-ylacetate. Group: Biochemicals. Grades: Highly Purified. CAS No. 350-30-1. Pack Sizes: 1g, 5g. Molecular Formula: C6H3ClFNO2, Molecular Weight: 175.54. US Biological Life Sciences.
Worldwide
3-CHLORO-4-FLUOROPHENETHYL ALCOHOL
3-CHLORO-4-FLUOROPHENETHYL ALCOHOL. Uses: Designed for use in research and industrial production. Additional or Alternative Names: 3-CHLORO-4-FLUOROPHENETHYL ALCOHOL;2-(3-CHLORO-4-FLUOROPHENYL)ETHANOL. Product Category: Heterocyclic Organic Compound. CAS No. 340825-21-0. Molecular formula: C8H8ClFO. Mole weight: 174.6. Product ID: ACM340825210. Alfa Chemistry ISO 9001:2015 Certified.
3-Chloro-4-fluorophenol
3-Chloro-4-fluorophenol post-translationally stabilizes survival motor neuron protein for treatment of spinal muscular atrophy. Group: Biochemicals. Grades: Highly Purified. CAS No. 2613-23-2. Pack Sizes: 100mg, 250mg. Molecular Formula: C6H4ClFO, Molecular Weight: 146.55. US Biological Life Sciences.
Worldwide
3-Chloro-4-fluorophenylacetic acid
3-Chloro-4-fluorophenylacetic acid. Group: Biochemicals. Grades: Highly Purified. CAS No. 705-79-3. Pack Sizes: 100mg, 250mg. Molecular Formula: C8H6ClFO2, Molecular Weight: 188.58. US Biological Life Sciences.
Worldwide
3-Chloro-4-fluorophenylacetonitri le
3-Chloro-4-fluorophenylacetonitri le. Group: Biochemicals. Grades: Highly Purified. CAS No. 658-98-0. Pack Sizes: 100mg, 250mg. Molecular Formula: C8H5ClFN, Molecular Weight: 169.58. US Biological Life Sciences.
Worldwide
3-Chloro-4-fluorophenylboronic acid
3-Chloro-4-fluorophenylboronic acid is a biochemical reagent that can be used as a biological material or organic compound for life science related research. Uses: Scientific research. Group: Biochemical assay reagents. CAS No. 144432-85-9. Pack Sizes: 10 mM * 1 mL; 10 g; 25 g. Product ID: HY-59204.
3-Chloro-4-fluorophenylboronic Acid is a reactant that has been used in the synthesis of 2-bromo-3-hexyl-5-(4-iodophenyl)thiophene, which has shown high anti-thrombolytic activity. Group: Biochemicals. Grades: Highly Purified. CAS No. 144432-85-9. Pack Sizes: 5g, 10g. Molecular Formula: C6H5BClFO2, Molecular Weight: 174.37. US Biological Life Sciences.
Worldwide
3-Chloro-4-fluorophenylboronic Acid-d3
3-Chloro-4-fluorophenylboronic Acid-d3 is the labeled analogue of 3-Chloro-4-fluorophenylboronic Acid (C374840), a reactant that has been used in the synthesis of 2-bromo-3-hexyl-5-(4-iodophenyl)thiophene, which has shown high anti-thrombolytic activity. Group: Biochemicals. Grades: Highly Purified. Pack Sizes: 1mg, 2.5mg. Molecular Formula: C6H2D3BClFO2, Molecular Weight: 177.38. US Biological Life Sciences.
Worldwide
3-Chloro-4-fluorophenylboronic acid pinacol ester
3-Chloro-4-fluorophenylboronic acid pinacol ester. Group: Biochemicals. Grades: Highly Purified. CAS No. 635305-46-3. Pack Sizes: 100mg, 250mg. Molecular Formula: C12H15BClFO2, Molecular Weight: 256.51. US Biological Life Sciences.
Worldwide
3-Chloro-4-fluorophenylhydrazine
3-Chloro-4-fluorophenylhydrazine. Uses: Designed for use in research and industrial production. Product Category: Aryl Fluorinated Building Blocks. CAS No. 84282-78-0. Molecular formula: C6H6N2ClF. Mole weight: 160.58. Product ID: ACM84282780. Alfa Chemistry ISO 9001:2015 Certified.
3-Chloro-4-fluorophenylhydrazine hydrochloride
3-Chloro-4-fluorophenylhydrazine hydrochloride. Group: Biochemicals. Grades: Highly Purified. CAS No. 175135-74-7. Pack Sizes: 50g, 100g. US Biological Life Sciences.
Worldwide
3-Chloro-4-fluorophenyl Isocyanate
3-Chloro-4-fluorophenyl Isocyanate was used in bicycloalkyl urea MCH receptor antagonists preparation as oral antiobesity drugs. Group: Biochemicals. Grades: Highly Purified. CAS No. 50529-33-4. Pack Sizes: 500mg, 1g. Molecular Formula: C7H3ClFNO, Molecular Weight: 171.56. US Biological Life Sciences.
Worldwide
3-Chloro-4-fluorophenylmagnesium bromide
3-Chloro-4-fluorophenylmagnesium bromide. Group: Salt. Alternative Names: 563676_ALDRICH, PC2947, SBB098150, AKOS016017674, bromo(3-chloro-4-fluorophenyl)magnesium, 3-Chloro-4-fluorophenylmagnesium bromide solution, 3-Chloro-4-fluorophenylmagnesium bromide 0.5M solution in THF, 3-Chloro-4-fluorophenylmagnesium bromide 0.5 M in Tetrahydrofuran, 413589-34-1. CAS No. 413589-34-1. Product ID: magnesium; 1-chloro-2-fluorobenzene-5-ide; bromide. Molecular formula: 233.75. Mole weight: C6H3BrClFMg. RRDNWGDDABSJNJ-UHFFFAOYSA-M. 96%.
3-Chloro-4'-fluoropropiophenone. Uses: Designed for use in research and industrial production. Product Category: Aryl Fluorinated Building Blocks. CAS No. 347-93-3. Molecular formula: C9H6FNO. Mole weight: 186.61. Product ID: ACM347933. Alfa Chemistry ISO 9001:2015 Certified. Categories: EINECS 206-475-2.
3-Chloro-4-fluoropyridine
3-Chloro-4-fluoropyridine. Group: Biochemicals. Grades: Highly Purified. CAS No. 883107-69-5. Pack Sizes: 500mg, 1g, 2g, 5g. US Biological Life Sciences.
Worldwide
3-Chloro-4-fluoropyridine 98+% (TLC)
3-Chloro-4-fluoropyridine 98+% (TLC). Group: Biochemicals. Grades: Reagent Grade. CAS No. 883107-69-5. Pack Sizes: 250mg, 1g, 5g, 10g. US Biological Life Sciences.
Worldwide
3-Chloro-4-fluorothiophenol
3-Chloro-4-fluorothiophenol. Group: Biochemicals. Grades: Highly Purified. CAS No. 60811-23-6. Pack Sizes: 100mg, 250mg. Molecular Formula: C6H4ClFS, Molecular Weight: 162.61. US Biological Life Sciences.
Worldwide
3-Chloro-4-fluorotoluene
3-Chloro-4-fluorotoluene. Group: Biochemicals. Grades: Highly Purified. CAS No. 1513-25-3. Pack Sizes: 500mg, 1g. Molecular Formula: C7H6ClF, Molecular Weight: 144.57. US Biological Life Sciences.
Worldwide
3-Chloro-4-formylbenzoic acid
3-Chloro-4-formylbenzoic Acid is a reagent in the synthesis of potential retinoid x receptor selective agonists used in the treatment of T-cell lymphoma. Group: Biochemicals. Grades: Highly Purified. CAS No. 58588-59-3. Pack Sizes: 25mg, 50mg. Molecular Formula: C8H5ClO3, Molecular Weight: 184.58. US Biological Life Sciences.
Worldwide
3-Chloro-4-formylphenylboronic acid
3-Chloro-4-formylphenylboronic acid. Uses: Designed for use in research and industrial production. Product Category: Boronic Acids. CAS No. 1072952-53-4. Product ID: ACM1072952534-1. Alfa Chemistry ISO 9001:2015 Certified.
3-Chloro-4-formylphenylboronic Acid
3-Chloro-4-formylphenylboronic acid. Group: Biochemicals. Grades: Highly Purified. CAS No. 1072952-53-4. Pack Sizes: 100mg, 250mg. Molecular Formula: C7H6BClO3, Molecular Weight: 184.39. US Biological Life Sciences.
Worldwide
3-Chloro-4- hydrazinecarbonyl phenyl Boronic acid
3-Chloro-4- hydrazinecarbonyl phenyl Boronic acid. Group: Biochemicals. Grades: Highly Purified. CAS No. 850589-37-6. Pack Sizes: 100mg, 250mg. Molecular Formula: C7H8BClN2O3, Molecular Weight: 214.41. US Biological Life Sciences.
Worldwide
3-Chloro-4-hydroxy-5-methoxybenzonitrile
3-Chloro-4-hydroxy-5-methoxybenzonitrile. Uses: Designed for use in research and industrial production. Additional or Alternative Names: MolPort-000-886-310, STK348813, ZINC00995872, 3-chloro-4-hydroxy-5-methoxybenzonitrile, CID1220717, C80252, AK-968/12096069, 5485-88-1. Product Category: Heterocyclic Organic Compound. CAS No. 5485-88-1. Molecular formula: C8H6ClNO2. Mole weight: 183.591740 [g/mol]. Purity: 0.96. IUPACName: 3-chloro-4-hydroxy-5-methoxybenzonitrile. Density: 1.4g/cm³. Product ID: ACM5485881. Alfa Chemistry ISO 9001:2015 Certified.
3-Chloro-4-hydroxy-5-methoxyphenylboronic acid
3-Chloro-4-hydroxy-5-methoxyphenylboronic acid. Group: Biochemicals. Grades: Highly Purified. CAS No. 919496-57-4. Pack Sizes: 25mg, 50mg. Molecular Formula: C7H8BClO4, Molecular Weight: 202.4. US Biological Life Sciences.