Building Blocks

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Building Blocks (Aliphatic/Aromatic/Heterocyclic/Carbohydrates)

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    Product Name : P-TOLUENE SULFONYL CHLORIDE;98-59-9

    Code:  BB1608
    CAS;98-59-9
    Chemical Formula: C7H7ClO2S
    Molecular Weight: 190.65
    Category: Reference Standards/ API Drug Metabolites/ EP Impurities/ USP Impurities
    Literature:
    Application: P-TOLUENE SULFONYL CHLORIDE;98-59-9 is useful as reference Impurity standard
    P-TOLUENE SULFONYL CHLORIDE;98-59-9
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    Product Name : 3,3′-Diaminobenzidine tetrahydrochloride hydrate;868272-85-9

    Code:  BB1607
    CAS;868272-85-9
    Chemical Formula:C12H17ClN4O
    Molecular Weight:268.75
    Category: Reference Standards/ API Drug Metabolites/ EP Impurities/ USP Impurities
    Literature:
    Application: 3,3'-Diaminobenzidine tetrahydrochloride hydrate;868272-85-9 is useful as reference Impurity standard
    3,3'-Diaminobenzidine tetrahydrochloride hydrate;868272-85-9
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    Product Name : (S)-3-Methylpiper/azin-2-one/78551-38-9

    Code:  BB1606
    CAS:78551-38-9
    Chemical Formula:C5H10N2O
    Molecular Weight:114.15
    Category: Reference Standards/ API Drug Metabolites/ EP Impurities/ USP Impurities
    Literature:
    Application: (S)-3-Methylpiper/azin-2-one/78551-38-9 is useful as reference Impurity standard
    (S)-3-Methylpiper/azin-2-one/78551-38-9
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    Product Name : 6-((3-fluorobenzyl)thio)-5-(2-methyl-4-nitrophenyl)-2H-pyrazolo[3,4-d]pyrimidin-4(5H)-one

    Code:  BB1605
    CAS:NA
    Chemical Formula: C19H14FN5O3S
    Molecular Weight: 411.41
    Category: Reference Standards/ API Drug Metabolites/ EP Impurities/ USP Impurities
    Literature:
    Application: 6-((3-fluorobenzyl)thio)-5-(2-methyl-4-nitrophenyl)-2H-pyrazolo[3,4-d]pyrimidin-4(5H)-one is useful as reference Impurity standard
    6-((3-fluorobenzyl)thio)-5-(2-methyl-4-nitrophenyl)-2H-pyrazolo[3,4-d]pyrimidin-4(5H)-one
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    Product Name : 4H-Pyrazolo[3,4-d]pyrimidin-4-one, 6-[[(3-fluorophenyl)methyl]thio]-1,5-dihydro-5-(2-methylphenyl)/361156-54-9

    Code:  BB1604
    CAS:361156-54-9
    Chemical Formula:C19H15FN4OS
    Molecular Weight:366.41
    Category: Reference Standards/ API Drug Metabolites/ EP Impurities/ USP Impurities
    Literature:
    Application: 4H-Pyrazolo[3,4-d]pyrimidin-4-one, 6-[[(3-fluorophenyl)methyl]thio]-1,5-dihydro-5-(2-methylphenyl)/361156-54-9 is useful as reference Impurity standard
    4H-Pyrazolo[3,4-d]pyrimidin-4-one, 6-[[(3-fluorophenyl)methyl]thio]-1,5-dihydro-5-(2-methylphenyl)/361156-54-9
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    Product Name : Ethyl2-[[3,4-dihydro-4-oxo-3-[3-(1-pyrrolidinyl)propyl][1]benzothieno[3,2-d]pyrimidin-2-yl]thio]acetate/896795-60-1

    Code:  BB1603
    CAS:896795-60-1
    Chemical Formula:C21H25N3O3S2
    Molecular Weight:431.6
    Category: Reference Standards/ API Drug Metabolites/ EP Impurities/ USP Impurities
    Literature:
    Application:Ethyl2-[[3,4-dihydro-4-oxo-3-[3-(1-pyrrolidinyl)propyl][1]benzothieno[3,2-d]pyrimidin-2-yl]thio]acetate/896795-60-1 is useful as reference Impurity standard
    Ethyl2-[[3,4-dihydro-4-oxo-3-[3-(1-pyrrolidinyl)propyl][1]benzothieno[3,2-d]pyrimidin-2-yl]thio]acetate/896795-60-1
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    Product Name : 4-tert-Butylphenol/98-54-4

    Code:  BB1602
    CAS:98-54-4
    Chemical Formula:C10H14O
    Molecular Weight:150.22
    Category: Reference Standards/ API Drug Metabolites/ EP Impurities/ USP Impurities
    Literature:
    Application:4-tert-Butylphenol/98-54-4 is useful as reference Impurity standard
    4-tert-Butylphenol/98-54-4
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    Product Name : 1-Chloro-2,4-difluorobenzene/1435-44-5

    Code:  BB1601
    CAS:1435-44-5
    Chemical Formula:C6H3ClF2
    Molecular Weight:148.54
    Category: Reference Standards/ API Drug Metabolites/ EP Impurities/ USP Impurities
    Literature:
    Application:1-Chloro-2,4-difluorobenzene/1435-44-5 is useful as reference Impurity standard
    1-Chloro-2,4-difluorobenzene/1435-44-5
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    Product Name : 5-Bromo-4-ethylthiazol-2-amine;5-Bromo-4-ethyl-2-aminothiazole;5-Bromo-4-ethylthiazol-2-amine/1158211-11-0

    Code:  BB1600
    CAS:1158211-11-0
    Chemical Formula:C5H7BrN2S
    Molecular Weight:207.09
    Category: Reference Standards/ API Drug Metabolites/ EP Impurities/ USP Impurities
    Literature:
    Application: 5-Bromo-4-ethylthiazol-2-amine/1158211-11-0 is useful as reference Impurity standard
    5-Bromo-4-ethylthiazol-2-amine;5-Bromo-4-ethyl-2-aminothiazole;5-Bromo-4-ethylthiazol-2-amine/1158211-11-0
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    Product Name : p-Cyclopropylbenzylamine;4-Cyclopropylbenzylamine/118184-67-1

    Code:  BB1599
    CAS:118184-67-1
    Chemical Formula:C10H13N
    Molecular Weight:147.22
    Category: Reference Standards/ API Drug Metabolites/ EP Impurities/ USP Impurities
    Literature:
    Application: 4-Cyclopropylbenzylamine/118184-67-1 is useful as reference Impurity standard
    p-Cyclopropylbenzylamine;4-Cyclopropylbenzylamine/118184-67-1
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    Product Name : Valerophenone/1009-14-9

    Code:  BB1598
    CAS:1009-14-9
    Chemical Formula:C11H14O
    Molecular Weight:162.23
    Category: Reference Standards/ API Drug Metabolites/ EP Impurities/ USP Impurities
    Literature:
    Application: Valerophenone/1009-14-9 is useful as reference Impurity standard
    Valerophenone/1009-14-9
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    Product Name : 9-MethoxyMethyl Guanine/1202645-50-8

    Code:  BB1597
    CAS: 1202645-50-8
    Chemical Formula:C7H9N5O2
    Molecular Weight:195.18
    Category: Reference Standards/ API Drug Metabolites/ EP Impurities/ USP Impurities
    Literature:
    Application: 9-MethoxyMethyl Guanine/1202645-50-8 is useful as reference Impurity standard
    9-MethoxyMethyl Guanine/1202645-50-8
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    Product Name : Dicyclohexylamine/101-83-7

    Code:  BB1596
    CAS: 101-83-7
    Chemical Formula: C12H23N
    Molecular Weight: 181.32
    Category: Reference Standards/ API Drug Metabolites/ EP Impurities/ USP Impurities
    Literature:
    Application: Dicyclohexylamine/101-83-7 is useful as reference Impurity standard
    Dicyclohexylamine/101-83-7
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    Product Name : Myristic acid/544-63-8

    Code:  BB1595
    CAS: 544-63-8
    Chemical Formula: C14H28O2
    Molecular Weight: 228.37
    Category: Reference Standards/ API Drug Metabolites/ EP Impurities/ USP Impurities
    Literature:
    Application: Myristic acid/544-63-8 is useful as reference Impurity standard
    Myristic acid/544-63-8
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    Product Name : 4-Chlorocinnamic acid/1615-02-7

    Code: BB1594
    CAS:1615-02-7
    Chemical Formula:C9H7ClO2
    Molecular Weight: 182.6037
    Category: Building Blocks
    Literature:
    Application: 4-Chlorocinnamic acid/1615-02-7 is useful as reference Impurity standard.
    4-Chlorocinnamic acid/1615-02-7
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    Product Name : Phthalimide/85-41-6

    Code: BB1593
    CAS:85-41-6
    Chemical Formula:C8H5NO2
    Molecular Weight: 147.13 
    Category: Building Blocks
    Literature:
    Application: Phthalimide/85-41-6  is useful as reference Impurity standard.
    Phthalimide/85-41-6
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    Product Name : 1,4-Butanesultone/1633-83-6

    Code: BB1592
    CAS:1633-83-6
    Chemical Formula:C4H8O3S
    Molecular Weight:136.17 
    Category: Building Blocks
    Literature:
    Application: 1,4-Butanesultone/1633-83-6  is useful as reference Impurity standard.
    1,4-Butanesultone/1633-83-6
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    Product Name : Dimethylcarbamoyl Chloride/79-44-7

    Code: BB1591
    CAS:79-44-7
    Chemical Formula:C3H6ClNO
    Molecular Weight:107.54 
    Category: Building Blocks
    Literature:
    Application: Dimethylcarbamoyl Chloride/79-44-7  is useful as reference Impurity standard.
    Dimethylcarbamoyl Chloride/79-44-7
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    Product Name : 1,4-Dichlorobutane/110-56-5

    Code: BB1590
    CAS: 110-56-5
    Chemical Formula:C4H8Cl2
    Molecular Weight: 127.01 
    Category: Building Blocks
    Literature:
    Application: 1,4-Dichlorobutane/110-56-5  is useful as reference Impurity standard.
    1,4-Dichlorobutane/110-56-5
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    Product Name : 1-(Bromomethyl)-2,4-dimethoxybenzene/161919-74-0

    Code: BB1589
    CAS: 55791-52-1
    Chemical Formula:C9H11BrO2
    Molecular Weight: 231.09
    Category: Building Blocks
    Literature:
    Application: 1-(Bromomethyl)-2,4-dimethoxybenzene/161919-74-0 is useful as reference Impurity standard.
    1-(Bromomethyl)-2,4-dimethoxybenzene/161919-74-0
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    Product Name : 1-(Chloromethyl)-2,4-dimethoxybenzene/55791-52-1

    Code: BB1588
    CAS: 55791-52-1
    Chemical Formula:C9H11ClO2
    Molecular Weight: 186.64
    Category: Building Blocks
    Literature:
    Application: 1-(Chloromethyl)-2,4-dimethoxybenzene/55791-52-1 is useful as reference Impurity standard.
    1-(Chloromethyl)-2,4-dimethoxybenzene/55791-52-1
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    Product Name : Benzyl piperidine-1-carboxylate/3742-91-4

    Code: BB1587
    CAS: 3742-91-4
    Chemical Formula: C13H17NO2
    Molecular Weight: 219.28
    Category: Building Blocks
    Literature:
    Application: Benzyl piperidine-1-carboxylate/3742-91-4 is useful as reference Impurity standard.
    Benzyl piperidine-1-carboxylate/3742-91-4
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    Product Name : 2-Chloro-4-methoxypyrimidine | 22536-63-6

    Code: BB1587
    CAS: 22536-63-6
    Chemical Formula: C5H5ClN2O
    Molecular Weight: 144.56
    Category: Building Blocks
    Literature:
    Application:  2-Chloro-4-methoxypyrimidine | 22536-63-6 is useful as reference Impurity standard.
     
    2-Chloro-4-methoxypyrimidine | 22536-63-6
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    Product Name : 2-Chloro-7-methylquinoxaline/ 90272-84-7

    Code: BB1586
    CAS: 90272-84-7
    Chemical Formula: C9H7ClN2
    Molecular Weight: 178.62
    Category: Building Blocks
    Literature:
    Application:  2-Chloro-7-methylquinoxaline/ 90272-84-7 is useful as reference Impurity standard.
    2-Chloro-7-methylquinoxaline/ 90272-84-7
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    Product Name : Oxazol-5-ylmethanol; 5-oxazolylmethanol ; 127232-41-1

    Code: BB1585
    CAS: 127232-41-1
    Chemical Formula: C4H5NO2
    Molecular Weight: 99.09
    Category: Building Blocks
    Literature:
    Application:  Oxazol-5-ylmethanol; 5-oxazolylmethanol ; 127232-41-1 is useful as reference Impurity standard.
     
    Oxazol-5-ylmethanol; 5-oxazolylmethanol ; 127232-41-1
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    Product Name : 2-fluoro-5-formylbenzamide/1236289-88-5

    Code: BB1584
    CAS: 1236289-88-5
    Chemical Formula: C8H6FNO2
    Molecular Weight: 167.14
    Category: Building blocks
    Literature:
    Application:2-fluoro-5-formylbenzamide/1236289-88-5  is useful as reference Impurity standard
    2-fluoro-5-formylbenzamide/1236289-88-5
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    Product Name : Gallic acid;3,4,5-TRIHYDROXYBENZOIC ACID;gallic;graphite oxide;Gallic acid/149-91-7

    Code: BB1583
    CAS: 149-91-7
    Chemical Formula: C7H6O5
    Molecular Weight: 170.12
    Category: Building blocks
    Literature:
    Application:Gallic acid;3,4,5-TRIHYDROXYBENZOIC ACID;gallic;graphite oxide;Gallic acid/149-91-7 is useful as reference Impurity standard
    Gallic acid;3,4,5-TRIHYDROXYBENZOIC ACID;gallic;graphite oxide;Gallic acid/149-91-7
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    Product Name : 6-Amino-4-ethyl-2-oxo-1,2-dihydro-pyridine-3,5-dicarbonitrile/191992-54-8

    Code: BB1582
    CAS: 191992-54-8
    Chemical Formula: C9H8N4O
    Molecular Weight: 188.19
    Category: Building blocks
    Literature:
    Application:6-Amino-4-ethyl-2-oxo-1,2-dihydro-pyridine-3,5-dicarbonitrile/191992-54-8 is useful as reference Impurity standard
    6-Amino-4-ethyl-2-oxo-1,2-dihydro-pyridine-3,5-dicarbonitrile/191992-54-8
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    Product Name : 4-(Dibromomethyl)-benzoic Acid/29045-93-0

    Code: BB1581
    CAS: 29045-93-0
    Chemical Formula: C8H6Br2O2
    Molecular Weight: 293.94
    Category: Building blocks
    Literature:
    Application:4-(Dibromomethyl)-benzoic Acid/29045-93-0 is useful as reference Impurity standard
    4-(Dibromomethyl)-benzoic Acid/29045-93-0
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    Product Name : 2-propylmalononitrile/38091-73-5

    Code: BB1580
    CAS: 38091-73-5
    Chemical Formula: C6H8N2
    Molecular Weight: 108.143
    Category: Building blocks
    Literature:
    Application: 2-propylmalononitrile/38091-73-5 is useful as reference Impurity standard
    2-propylmalononitrile/38091-73-5
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    Product Name : propylidenemalonitrile/52833-34-8

    Code: BB1579
    CAS: 52833-34-8
    Chemical Formula: C6H6N2
    Molecular Weight: 106.127
    Category: Building blocks
    Literature:
    Application: propylidenemalonitrile/52833-34-8 is useful as reference Impurity standard
    propylidenemalonitrile/52833-34-8
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    Product Name : 2-Ethylpropane-1,1,3,3-tetracarbonitrile/90323-61-8

    Code: BB1578
    CAS:90323-61-8
    Chemical Formula: C9H8N4
    Molecular Weight: 172.189
    Category: Building blocks
    Literature:
    Application: 2-Ethylpropane-1,1,3,3-tetracarbonitrile/90323-61-8 is useful as reference Impurity standard
    2-Ethylpropane-1,1,3,3-tetracarbonitrile/90323-61-8
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    Product Name : Methimazole dimer impurity; bis(1-methylimidazol-2-yl) disulphide/61747-29-3

    Code: BB1577
    CAS:61747-29-3
    Chemical Formula: C8H10N4S2
    Molecular Weight: 226.32
    Category: Building blocks
    Literature:
    Application: bis(1-methylimidazol-2-yl) disulphide/61747-29-3 is useful as reference Impurity standard
    Methimazole dimer impurity; bis(1-methylimidazol-2-yl) disulphide/61747-29-3
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