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Reference standards play a crucial role in ensuring the quality and accuracy of vitamins. These standards serve as benchmarks against which the identity, potency, and purity of vitamins can be tested, allowing manufacturers, regulatory bodies, and consumers to have confidence in the quality of vitamin products. Reference standards provide a standardized basis for comparison, enabling consistent and reliable results across different laboratories and manufacturers. They are used in various stages of vitamin production, including raw material testing, quality control during manufacturing, and final product analysis. By using reference standards, manufacturers can verify the authenticity and potency of vitamins, ensuring that they meet the required specifications and are safe for consumption. Additionally, reference standards aid regulatory bodies in setting quality standards, facilitating compliance and harmonization of vitamin regulations worldwide. Overall, the use of reference standards is essential in maintaining the quality, safety, and efficacy of vitamins, instilling trust in both manufacturers and consumers.

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Adenine

API Standards


  • CAT No.:
    CS-O-30866

  • CAS No.:
    73-24-5

  • Molecular Formula :
    C5H5N5

  • Molecular Weight :
    135.13

Alfacalcidol

API Standards


  • CAT No.:
    CS-O-00811

  • CAS No.:
    41294-56-8

  • Molecular Formula :
    C27H44O2

  • Molecular Weight :
    400.6


  • CAT No.:
    CS-EG-00051

  • CAS No.:
    41294-56-8


  • CAT No.:
    CS-ER-02353

  • CAS No.:
    41294-56-8

all-trans-Retinal

Impurities


  • CAT No.:
    CS-T-61094

  • CAS No.:
    116-31-4


  • CAT No.:
    CS-EB-02900

  • CAS No.:
    10191-41-0

  • Molecular Formula :
    C29H50O2

  • Molecular Weight :
    430.71


  • CAT No.:
    CS-EB-02116

  • CAS No.:
    10191-41-0


  • CAT No.:
    CS-ER-02108

  • CAS No.:
    10191-41-0


  • CAT No.:
    CS-EG-01792

  • CAS No.:
    10191-41-0

Ascorbic acid

API Standards


  • CAT No.:
    CS-O-00843

  • CAS No.:
    50-81-7

  • Molecular Formula :
    C6H8O6

  • Molecular Weight :
    176.12


  • CAT No.:
    CS-EB-02622

  • CAS No.:
    50-81-7

  • Molecular Formula :
    C6H8O6

  • Molecular Weight :
    176.12


  • CAT No.:
    CS-EG-00896

  • CAS No.:
    50-81-7

  • Molecular Formula :
    C6H8O6

  • Molecular Weight :
    176.12 g/mol


  • CAT No.:
    CS-EB-00271

  • CAS No.:
    7235-40-7

  • Molecular Formula :
    C40H56

  • Molecular Weight :
    536.87 g/mol


  • CAT No.:
    CS-ER-00263

  • CAS No.:
    7235-40-7

Beta-carotene

Fine Chemicals


  • CAT No.:
    CS-O-00957

  • CAS No.:
    7235-40-7

  • Molecular Formula :
    C40H56

  • Molecular Weight :
    536.87


  • CAT No.:
    CS-EG-01574

  • CAS No.:
    7235-40-7

  • Molecular Formula :
    C40H56

  • Molecular Weight :
    536.87 g/mol

Biotin (1071508)

USP Standards


  • CAT No.:
    CS-EB-02510

  • CAS No.:
    58-85-5

  • Molecular Formula :
    C10H16N2O3S

  • Molecular Weight :
    244.31 g/mol

Biotin (B1116000)

EP Standards


  • CAT No.:
    CS-EG-00922

  • CAS No.:
    58-85-5


  • CAT No.:
    CS-EG-00193

  • CAS No.:
    58-85-5


  • CAT No.:
    CS-ER-02479

  • CAS No.:
    58-85-5

Biotin-Vitamin B7

Impurities


  • CAT No.:
    CS-O-08437

  • CAS No.:
    58-85-5

  • Molecular Formula :
    C10H16N2O3S

  • Molecular Weight :
    244.31


  • CAT No.:
    CS-ER-02521

  • CAS No.:
    63283-36-3


  • CAT No.:
    CS-ER-00343

  • CAS No.:
    63283-36-3

Calcitriol

API Standards


  • CAT No.:
    CS-O-06153

  • CAS No.:
    32222-06-3

  • Molecular Formula :
    C27H44O3

  • Molecular Weight :
    416.64


  • CAT No.:
    CS-EG-00956

  • CAS No.:
    32222-06-3


  • CAT No.:
    CS-EB-00356

  • CAS No.:
    32222-06-3


  • CAT No.:
    CS-ER-00348

  • CAS No.:
    32222-06-3

Calcium Folinate

API Standards


  • CAT No.:
    CS-O-06253

  • CAS No.:
    1492-18-8

  • Molecular Formula :
    C20H21CaN7O7

  • Molecular Weight :
    511.50


  • CAT No.:
    CS-EG-00833

  • CAS No.:
    1492-18-8

  • Molecular Formula :
    C20H21CaN7O7

  • Molecular Weight :
    511.50


  • CAT No.:
    CS-EG-00778

  • CAS No.:
    1492-18-8

  • Molecular Formula :
    C20H21CaN7O7

  • Molecular Weight :
    511.5


  • CAT No.:
    CS-P-01028

  • CAS No.:
    27214-00-2

Calcium Levofolinate

API Standards


  • CAT No.:
    CS-O-06299

  • CAS No.:
    80433-71-2

  • Molecular Formula :
    C20H21CaN7O7

  • Molecular Weight :
    511.5

Calcium Pantothenate

Fine Chemicals


  • CAT No.:
    CS-O-00303

  • CAS No.:
    137-08-6

  • Molecular Formula :
    C18H32CaN2O10

  • Molecular Weight :
    476.53


  • CAT No.:
    CS-EG-00970

  • CAS No.:
    137-08-6

  • Molecular Formula :
    .

  • Molecular Weight :
    .

Cholecalciferol

API Standards


  • CAT No.:
    CS-O-01095

  • CAS No.:
    67-97-0

  • Molecular Formula :
    C27H44O

  • Molecular Weight :
    384.64


  • CAT No.:
    CS-EG-00334

  • CAS No.:
    67-97-0

  • Molecular Formula :
    C27H44O

  • Molecular Weight :
    384.64


  • CAT No.:
    CS-EG-00335

  • CAS No.:
    67-97-0

  • Molecular Formula :
    C27H44O

  • Molecular Weight :
    384.64


  • CAT No.:
    CS-ER-02621

  • CAS No.:
    67-97-0


  • CAT No.:
    CS-ER-02620

  • CAS No.:
    67-97-0

Cobamamide

API Standards


  • CAT No.:
    CS-T-51233

  • CAS No.:
    13870-90-1

  • Molecular Formula :
    C72H100CoN18O17P

  • Molecular Weight :
    1579.58

Cod Liver Oil

Solutions


  • CAT No.:
    CS-BX-00751

  • CAS No.:
    8001-69-2


  • CAT No.:
    CS-ER-00547

  • CAS No.:
    8001-69-2

CS-O-32319

Fine Chemicals


  • CAT No.:
    CS-TC-02113

  • CAS No.:
    68792-52-9

  • Molecular Formula :
    C20H25N7Na2O6

  • Molecular Weight :
    503.42 g/mol

Cyanocobalamin

API Standards


  • CAT No.:
    CS-O-01152

  • CAS No.:
    68-19-9

  • Molecular Formula :
    C63H88CoN14O14P

  • Molecular Weight :
    1355.37

Cyanocobalamin (466)

BP Standards


  • CAT No.:
    CS-ET-00046

  • CAS No.:
    68-19-9

  • Molecular Formula :
    C63H88CoN14O14P

  • Molecular Weight :
    1355.37


  • CAT No.:
    CS-EG-00411

  • CAS No.:
    68-19-9

  • Molecular Formula :
    C63H8CoN14O14P

  • Molecular Weight :
    1355.37


  • CAT No.:
    CS-EB-00573

  • CAS No.:
    68-19-9

  • Molecular Formula :
    C63H8CoN14O14P

  • Molecular Weight :
    1355.37 g/mol


  • CAT No.:
    CS-ER-00565

  • CAS No.:
    68-19-9


  • CAT No.:
    CS-EG-03050

  • CAS No.:
    68-19-9

  • Molecular Formula :
    C63H88CoN14O14P

  • Molecular Weight :
    1355.37

D-Biotin

API Standards


  • CAT No.:
    CS-P-00358

  • CAS No.:
    58-85-5

  • Molecular Formula :
    C10H16N2O3S

  • Molecular Weight :
    244.31

D-Desthiobiotin

Intermediates


  • CAT No.:
    CS-T-89060

  • CAS No.:
    533-48-2


  • CAT No.:
    CS-O-33288

  • CAS No.:
    143032-85-3

  • Molecular Formula :
    C28H46O2

  • Molecular Weight :
    414.66


  • CAT No.:
    CS-T-53114

  • CAS No.:
    67-96-9


  • CAT No.:
    CS-ER-02783

  • CAS No.:
    67-96-9

Doxercalciferol

API Standards


  • CAT No.:
    CS-O-01349

  • CAS No.:
    54573-75-0

  • Molecular Formula :
    C28H44O2

  • Molecular Weight :
    412.65

Doxercalciferol D3

Stable Isotopes


  • CAT No.:
    CS-O-15784

  • CAS No.:
    54573-75-0 (Unlabeled)

Doxercalciferol D6

Stable Isotopes


  • CAT No.:
    CS-O-06565

  • CAS No.:
    54573-75-0(Unlabeled)

  • Molecular Formula :
    C28H38D6O2

  • Molecular Weight :
    418.68


  • CAT No.:
    CS-O-33819

  • CAS No.:
    127264-18-0

  • Molecular Formula :
    C28H44O2

  • Molecular Weight :
    412.65

Ergocalciferol

API Standards


  • CAT No.:
    CS-O-10259

  • CAS No.:
    50-14-6

  • Molecular Formula :
    C28H44O

  • Molecular Weight :
    396.65


  • CAT No.:
    CS-EG-01324

  • CAS No.:
    50-14-6

  • Molecular Formula :
    C28H44O

  • Molecular Weight :
    396.64 g/mol

Folic acid

API Standards


  • CAT No.:
    CS-O-11653

  • CAS No.:
    59-30-3

  • Molecular Formula :
    C19H19N7O6

  • Molecular Weight :
    441.40

Folic acid (937)

BP Standards


  • CAT No.:
    CS-ET-00094

  • CAS No.:
    59-30-3

  • Molecular Formula :
    C19H19N7O6

  • Molecular Weight :
    441.4


  • CAT No.:
    CS-EB-02531

  • CAS No.:
    59-30-3

  • Molecular Formula :
    C19H19N7O6

  • Molecular Weight :
    441.4


  • CAT No.:
    CS-EG-00791

  • CAS No.:
    59-30-3

  • Molecular Formula :
    C19H19N7O6

  • Molecular Weight :
    441.4


  • CAT No.:
    CS-ER-00935

  • CAS No.:
    1492-18-8

Folic acid(F0300000)

EP Standards


  • CAT No.:
    CS-EG-00729

  • CAS No.:
    59-30-3

  • Molecular Formula :
    C19H19N7O6

  • Molecular Weight :
    441.4

Fursultiamine

API Standards


  • CAT No.:
    CS-T-74960

  • CAS No.:
    804-30-8


  • CAT No.:
    CS-P-01222

  • CAS No.:
    58288-50-9

Inositol

API Standards


  • CAT No.:
    CS-O-30601

  • CAS No.:
    87-89-8

  • Molecular Formula :
    C6H12O6

  • Molecular Weight :
    180.16


  • CAT No.:
    CS-CG-00009

  • CAS No.:
    113170-55-1


  • CAT No.:
    CS-T-30988

  • CAS No.:
    6035-45-6


  • CAT No.:
    CS-ER-01166

  • CAS No.:
    1492-18-8

Levomefolate Calcium

API Standards


  • CAT No.:
    CS-O-11676

  • CAS No.:
    151533-22-1

  • Molecular Formula :
    C20H23CaN7O6

  • Molecular Weight :
    497.52

Levomefolic acid

Impurities


  • CAT No.:
    CS-MM-12166

  • CAS No.:
    31690-09-2

  • Molecular Formula :
    C20H25N7O6

  • Molecular Weight :
    459.47 g/mol


  • CAT No.:
    CS-ER-02945

  • CAS No.:
    151533-22-1

  • Molecular Formula :
    C20H23CaN7O6

  • Molecular Weight :
    497.13


  • CAT No.:
    CS-T-57402

  • CAS No.:
    10034-96-5


  • CAT No.:
    CS-ER-01229

  • CAS No.:
    10034-96-5


  • CAT No.:
    CS-T-81858

  • CAS No.:
    130-37-0

  • Molecular Formula :
    C11H9NaO5S

  • Molecular Weight :
    276.24

Menaquinone 7

API Standards


  • CAT No.:
    CS-T-57476

  • CAS No.:
    2124-57-4

  • Molecular Formula :
    C46H64O2

  • Molecular Weight :
    649.00


  • CAT No.:
    CS-ER-01288

  • CAS No.:
    863-61-6


  • CAT No.:
    CS-ER-01289

  • CAS No.:
    2124-57-4

Methylcobalamin

API Standards


  • CAT No.:
    CS-O-02549

  • CAS No.:
    13422-55-4

  • Molecular Formula :
    C63H91CoN13O14P

  • Molecular Weight :
    1344.38

Niacin (J0J235)

USP Standards


  • CAT No.:
    CS-EB-01470

  • CAS No.:
    59-67-6

  • Molecular Formula :
    C6NH5O2

  • Molecular Weight :
    123.1

Niacinamide (O0L486)

USP Standards


  • CAT No.:
    CS-EB-01471

  • CAS No.:
    98-92-0

  • Molecular Formula :
    C6H6N2O

  • Molecular Weight :
    122.12 g/mol


  • CAT No.:
    CS-ER-01463

  • CAS No.:
    98-92-0

Nicotinamide

API Standards


  • CAT No.:
    CS-O-30679

  • CAS No.:
    98-92-0

  • Molecular Formula :
    C6H6N2O

  • Molecular Weight :
    122.12


  • CAT No.:
    CS-EG-00781

  • CAS No.:
    98-92-0

  • Molecular Formula :
    C6H6N2O

  • Molecular Weight :
    122.12


  • CAT No.:
    CS-EG-00771

  • CAS No.:
    98-92-0

  • Molecular Formula :
    C6H6N2O

  • Molecular Weight :
    122.12 g/mol

Nicotine

Pesticide Standards


  • CAT No.:
    CS-P-00449

  • CAS No.:
    54-11-5

  • Molecular Formula :
    C10H14N2

  • Molecular Weight :
    162.23

Nicotinic acid

Fine Chemicals


  • CAT No.:
    CS-O-30684

  • CAS No.:
    59-67-6

  • Molecular Formula :
    C6H5NO2

  • Molecular Weight :
    123.11

Orotic acid

API Standards


  • CAT No.:
    CS-ED-01819

  • CAS No.:
    65-86-1

  • Molecular Formula :
    C5H4N2O4

  • Molecular Weight :
    156.10


  • CAT No.:
    CS-T-38095

  • CAS No.:
    50887-69-9

Phytonadione (R014X0)

USP Standards


  • CAT No.:
    CS-EB-01683

  • CAS No.:
    84-80-0


  • CAT No.:
    CS-ER-01683

  • CAS No.:
    84-80-0


  • CAT No.:
    CS-O-33287

  • CAS No.:
    1818286-63-3

  • Molecular Formula :
    C28H44O2

  • Molecular Weight :
    412.65


  • CAT No.:
    CS-O-11726

  • CAS No.:
    524-36-7

  • Molecular Formula :
    C8H14Cl2N2O2

  • Molecular Weight :
    241.11

Pyridoxine

API Standards


  • CAT No.:
    CS-O-02556

  • CAS No.:
    65-23-6

  • Molecular Formula :
    C8H11NO3

  • Molecular Weight :
    169.18


  • CAT No.:
    CS-O-06071

  • CAS No.:
    54-47-7

  • Molecular Formula :
    C8H10NO6P

  • Molecular Weight :
    247.1

Retinol

API Standards


  • CAT No.:
    CS-O-30753

  • CAS No.:
    68-26-8

  • Molecular Formula :
    C20H30O

  • Molecular Weight :
    286.45

Riboflavin

API Standards


  • CAT No.:
    CS-O-02238

  • CAS No.:
    83-88-5

  • Molecular Formula :
    C17H20N4O6

  • Molecular Weight :
    376.36


  • CAT No.:
    CS-O-02239

  • CAS No.:
    130-40-5

  • Molecular Formula :
    C17H20N4NaO9P

  • Molecular Weight :
    478.33


  • CAT No.:
    CS-EG-02996

  • CAS No.:
    83-88-5

  • Molecular Formula :
    .

  • Molecular Weight :
    .

Rutin

API Standards


  • CAT No.:
    CS-O-02287

  • CAS No.:
    153-18-4

  • Molecular Formula :
    C27H30O16

  • Molecular Weight :
    610.52

Selenous acid

Fine Chemicals


  • CAT No.:
    CS-O-30772

  • CAS No.:
    7783-00-8

  • Molecular Formula :
    H2O3Se

  • Molecular Weight :
    128.97

Sodium ascorbate

Building Blocks


  • CAT No.:
    CS-O-02296

  • CAS No.:
    134-03-2

  • Molecular Formula :
    C6H7NaO6

  • Molecular Weight :
    198.11

Sodium D-Pantothenate

Fine Chemicals


  • CAT No.:
    CS-DJ-00801

  • CAS No.:
    867-81-2


  • CAT No.:
    CS-T-43690

  • CAS No.:
    135-16-0

Thiamine mononitrate

Fine Chemicals


  • CAT No.:
    CS-O-30785

  • CAS No.:
    532-43-4

  • Molecular Formula :
    C12H17N5O4S

  • Molecular Weight :
    327.36

Thiamine Nitrate

Intermediates


  • CAT No.:
    CS-T-86364

  • CAS No.:
    532-43-4

  • Molecular Formula :
    C12H17N5O4S

  • Molecular Weight :
    327.36


  • CAT No.:
    CS-EG-00773

  • CAS No.:
    532-43-4

  • Molecular Formula :
    327.36 g/mol

  • Molecular Weight :
    C12H17N5O4S


  • CAT No.:
    CS-EG-00783

  • CAS No.:
    532-43-4

  • Molecular Formula :
    C12H17N5O4S

  • Molecular Weight :
    327.36


  • CAT No.:
    CS-T-44112

  • CAS No.:
    154-87-0


  • CAT No.:
    CS-O-36324

  • CAS No.:
    84-80-0

  • Molecular Formula :
    C31H46O2

  • Molecular Weight :
    450.70

Troxerutin

API Standards


  • CAT No.:
    CS-O-02517

  • CAS No.:
    7085-55-4

  • Molecular Formula :
    C33H42O19

  • Molecular Weight :
    742.68

Vitamin A Acetate

API Standards


  • CAT No.:
    CS-O-02562

  • CAS No.:
    127-47-9

  • Molecular Formula :
    C22H32O2

  • Molecular Weight :
    328.49

Vitamin A Palmitate

API Standards


  • CAT No.:
    CS-O-02552

  • CAS No.:
    79-81-2

  • Molecular Formula :
    C36H60O2

  • Molecular Weight :
    524.86

Vitamin B1

Intermediates


  • CAT No.:
    CS-BG-00033

  • CAS No.:
    59-43-8

  • Molecular Formula :
    C12H17ClN4OS

  • Molecular Weight :
    300.81

Vitamin B5

API Standards


  • CAT No.:
    CS-O-10258

  • CAS No.:
    137-08-6

  • Molecular Formula :
    C18H32CaN2O10

  • Molecular Weight :
    476.53


  • CAT No.:
    CS-ER-02242

  • CAS No.:
    67-97-0

Vitamin D4

API Standards


  • CAT No.:
    CS-T-46521

  • CAS No.:
    511-28-4


  • CAT No.:
    CS-P-06987

  • CAS No.:
    10191-41-0

  • Molecular Formula :
    C29H50O2

  • Molecular Weight :
    430.71


  • CAT No.:
    CS-O-02565

  • CAS No.:
    84-80-0

  • Molecular Formula :
    C31H46O2

  • Molecular Weight :
    450.7


  • CAT No.:
    CS-T-57475

  • CAS No.:
    863-61-6

  • Molecular Formula :
    C31H40O2

  • Molecular Weight :
    444.65

Vitamin K3

API Standards


  • CAT No.:
    CS-T-46517

  • CAS No.:
    58-27-5

  • Molecular Formula :
    C11H8O2

  • Molecular Weight :
    172.18

Zinc Chloride

Fine Chemicals


  • CAT No.:
    CS-T-62835

  • CAS No.:
    7646-85-7

  • Molecular Formula :
    Cl2Zn

  • Molecular Weight :
    136.28

Zinc Sulfate

Intermediates


  • CAT No.:
    CS-O-15819

  • CAS No.:
    7733-02-0

  • Molecular Formula :
    ZnSO4

  • Molecular Weight :
    161.45


  • CAT No.:
    CS-T-34461

  • CAS No.:
    481-85-6


  • CAT No.:
    CS-T-36553

  • CAS No.:
    54-11-5

  • Molecular Formula :
    C10H14N2

  • Molecular Weight :
    162.23


  • CAT No.:
    CS-P-02781


  • CAT No.:
    CS-O-10245

  • CAS No.:
    19356-17-3

  • Molecular Formula :
    C27H44O2

  • Molecular Weight :
    400.64


  • CAT No.:
    CS-I-00404

  • CAS No.:
    19356-17-3

  • Molecular Formula :
    C27H44O2

  • Molecular Weight :
    400.63 g/mol

25-OH-Vitamin D3

API Standards


  • CAT No.:
    CS-DL-00734

  • CAS No.:
    63283-36-3

  • Molecular Formula :
    C27H44O2 : H2O

  • Molecular Weight :
    400.6 : 18.0


  • CAT No.:
    CS-M-25788

  • CAS No.:
    85-87-0


  • CAT No.:
    CS-T-62141

  • CAS No.:
    4345-03-3

  • Molecular Formula :
    C33H54O5

  • Molecular Weight :
    530.78


  • CAT No.:
    CS-EP-00508

  • CAS No.:
    53-84-9

  • Molecular Formula :
    C21H27N7O14P2

  • Molecular Weight :
    663.43