CAS NO.:175865-59-5

viewed 4266 times

Appearance: White crystalline power
Molecular formula: C8H11N5O3
Molecular weight: 225.21
CAS NO.: 59277-89-3
EINECS NO.:261-685-1
Standard: USP24

1.Melting Point: 256-257 degree
2.Assay: ≥98%
3.Loss On drying :≤ 6.0%
4.Heavy metals: ≤10ppm
5.Limit for Guanine :≤1.0%
6.absorption coefficient: 603-641
7.Residue on ignition:≤0.1%

viewed 4264 times

Appearance: White crystalline power
Molecular formula: C5H9NO3S
Molecular weight: 163.19
CAS NO.: 1953-02-2
EINECS NO.:217-778-4
Quality Standard: Company Standard

1. Melting Point: 96-99 degree
2. Loss on drying: ≤0.5%
3. Assay: ≥98%
4. Heavy Metals: 15ppm
5. Acidity: pH 1.5-3.0
6. Sulphate: ≤0.05%
7. Residue on ignition: ≤0.1%
8. Malysite: ≤0.0005%
9. Arsenic: ≤0.0002%

viewed 6041 times

Appearance: White power
Molecular formula: C16H21N3O2
Molecular weight: 287.36
CAS NO.: 139264-17-8
Quality Standard: Company Standard

1. Melting Point: 136-141 degree
2. Related Substance: ≤0.5%
3. Loss on drying:≤0.5%
4. Residue on ignition:≤0.1%
5. Assay: ≥99%
6. Heavy Metals: ≤20ppm
7. Specific rotation: -4.5 - -8.5 degree
8. Ethyl acetate: ≤0.01%
9. isopropanol: ≤0.01%
10.methanol: ≤0.01%

viewed 6034 times

Appearance: White to off-white crystalline power
Molecular formula: C16H25NO4.HCl
Molecular weight:331.15
CAS NO.:: 81161-17-3
Quality Standard: Company Standard

1. Loss on drying:≤0.5%
2. Heavy metals:≤20ppm
3. Assay: ≥99.0%(HPLC)
4. Melting Point:85-92℃
5. Related substance:≤0.5%
6.Acidity: ≤pH 2.5-4.5
7. Sulphate: ≤0.030%
8. Residue on ignition: ≤0.1%

viewed 3869 times

Appearance: White to off-white crystalline power
Molecular formula: C14H19N5O4
Molecular weight: 321.33
CAS NO.: 104227-87-4
Quality Standard: CP2005

1. Melting Point:101-103 degree
2. PH Value: 6.0-7.5
3. Related Substance: ≤1.0%
4. Loss on drying:≤0.5%
5. Residue on ignition:≤0.1%
6. Heavy metals:≤10ppm
7. Assay: ≥98.5%

viewed 3855 times

Appearance: White to off-white crystalline power
Molecular formula: C23H31NO7
Molecular weight: 433.49
CAS NO.: 128794-94-5
Quality Standard: National Standard

1. Melting Point:93-96 degree
2. Related Substance: 1.0%
MPA: 0.5%
3. Loss on drying:≤0.5%
4. Heavy metals:≤20ppm
5. Assay: : ≥98.5%
6. Residue on ignition: ≤0.1%

viewed 3754 times

Appearance: White to off-white crystalline power
Molecular formula: C21H23NO4S
Molecular weight: 385.48
CAS NO.: 81110-73-8
Quality Standard: National Standard

1. Melting Point:89 degree
2. ethanol: ≤0.5%
3. tetrahydrofuran: ≤0.072%
4. normal hexane: ≤0.029%
5. methenyl chloride: ≤0.006%
6. Loss on drying: ≤0.5%
7. Heavy metals: ≤10ppm
8. Assay: ≥98.5%

viewed 3788 times

Appearance: White to off-white crystalline power
Molecular formula: C9H15NO3S
Molecular weight: 217.28
CAS NO.: 62571-86-2
EINECS:263-607-1
Quality Standard: CP2005

1. Specific Optical Rotation: -126 ~ -132 degree
2. Assay: ≥99.5%
3. Melting Point:103-108(degree)
4. Captopril disulphide: ≤1.5%
5. Loss on drying: ≤0.5%
6. Residue on ignition: ≤0.1%
7. Heavy mental: ≤20ppm

viewed 3604 times

Appearance: White to off-white crystalline power
Molecular formula: Molecular formula: C13H20N6O4.HCL
Molecular weight: 360.80
CAS NO.: 124832-27-5
Quality Standard: CP2005

1. Specific optical rotation: -8.5 - -11.5 degree
2. Absorption coefficient: ≤360 - 390
3. Acidity: 4.6 - 6.0
4. Related substance: ≤2.0%
5. Limit for Aciclovir: ≤1.5%
6. Loss on drying: ≤8.0%
7. Residue on ignition: ≤0.1%
8. Heavy metals: ≤20ppm
9. Assay: ≥98.0%

viewed 3556 times