二硫苏糖醇，英文名称：DL-DITHIOTHREITOL （DTT），等级：生物技术级，包装规格：100G，CAS：3483-12-3

DTT (DL-DITHIOTHREITOL)
Grade:BIOTECHNOLOGY GRADE
CAS Number: 3483-12-3Synonym(s): dithiothreitol, dtt, Cleland's reagent
Molecular Weight: 154.25Molecular Formula: C4H10O2S2
Storage Condition: FROZEN
CodeSizePriceQuantity
0281-25G
An excellent reagent for maintaining SH groups in reduced state; quantitatively reduces disulfides. DTT is effective in sample buffers for reducing protein disulfide bonds prior to SDS-PAGE. DTT can also be used for reducing the disulfide bridge of the cross-linker N,N′-bis(acryloyl)cystamine to break apart the matrix of a polyacrylamide gel. DTT is less pungent and is less toxic than 2-mercaptoethanol. Typically, a seven fold lower concentration of DTT (100 mM) is needed than is used for 2-mercaptoethanol (5% v/v, 700 mM).

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DTT (DL-DITHIOTHREITOL)
Grade:BIOTECHNOLOGY GRADE
CAS Number: 3483-12-3Synonym(s): dithiothreitol, dtt, Cleland's reagent
Molecular Weight: 154.25Molecular Formula: C4H10O2S2
Storage Condition: FROZEN
CodeSizePriceQuantity
0281-25G
An excellent reagent for maintaining SH groups in reduced state; quantitatively reduces disulfides. DTT is effective in sample buffers for reducing protein disulfide bonds prior to SDS-PAGE. DTT can also be used for reducing the disulfide bridge of the cross-linker N,N′-bis(acryloyl)cystamine to break apart the matrix of a polyacrylamide gel. DTT is less pungent and is less toxic than 2-mercaptoethanol. Typically, a seven fold lower concentration of DTT (100 mM) is needed than is used for 2-mercaptoethanol (5% v/v, 700 mM).

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磷酸氢钙,二水，英文名称：CALCIUM PHOSPHATE,DIBASIC,DIHYDRATE，等级：高纯级，包装规格：500G，CAS：7789-77-7

CALCIUM PHOSPHATE, DIBASIC, DIHYDRATE
Grade:HIGH PURITY GRADE
CAS Number: 7789-77-7Synonym(s): None
Molecular Weight: 172.1Molecular Formula: CaHPO4 • 2H2O
Storage Condition: ROOM TEMPERATURE
CodeSizePriceQuantity
0279-2.5KG
Features
Acid Insoluble Substances (%) 0.2
Arsenic (%) 0.0003
Barium Test (P/F)
Chloride (%) < 0.25
Fluoride (%) 0.005
Heavy Metals (%) < 0.003
Loss on Ignition (%) 24.5 – 26.5
pH (2%, Water) @25C 7.0 – 8.0
Sulfate (%) < 0.5
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磷酸氢钙,二水，英文名称：CALCIUM PHOSPHATE, DIBASIC, DIHYDRATE，等级：高纯级，包装规格：2.5KG，CAS：7789-77-7

CALCIUM PHOSPHATE, DIBASIC, DIHYDRATE
Grade:HIGH PURITY GRADE
CAS Number: 7789-77-7Synonym(s): None
Molecular Weight: 172.1Molecular Formula: CaHPO4 • 2H2O
Storage Condition: ROOM TEMPERATURE
CodeSizePriceQuantity
0279-2.5KG
Features
Acid Insoluble Substances (%) 0.2
Arsenic (%) 0.0003
Barium Test (P/F)
Chloride (%) < 0.25
Fluoride (%) 0.005
Heavy Metals (%) < 0.003
Loss on Ignition (%) 24.5 – 26.5
pH (2%, Water) @25C 7.0 – 8.0
Sulfate (%) < 0.5

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罗丹名B，英文名称：RHODAMINE B，等级：试剂级，包装规格：500G，CAS：81-88-9

RHODAMINE B
Grade:REAGENT GRADE
CAS Number: 81-88-9Synonym(s): None
Molecular Weight: 479.02Molecular Formula: C28H31ClN2O3
Storage Condition: ROOM TEMPERATURE
CodeSizePriceQuantity
Its fluorescent properties in ultraviolet light make it a useful fluorochrome for histology.
Features
Ash (%) 0.2
Em (545nm, Methanol) 98000
Solubility (0.5%, Water) (P/F)

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