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Impurities and reference standards

Bis valacyclovir

Also known as Valaciclovir hydrochloride, anhydrous impurity P, 2,2'-(Methylenebis(imino(6-oxo-1,6-dihydro-9H-purine-9,2-diyl)methyleneoxy))diethyl di(L-valinate), Valaciclovir hydrochloride hydrate impurity p

CAS 1356019-51-6Formula C27H40N12O8Molar mass 660.69 g/mol
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Bis valacyclovir chemical structure, C27H40N12O8, CAS 1356019-51-6
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
1356019-51-6
Formula
C27H40N12O8
Molar mass
660.69 g/mol
HS code
293359
Category
Impurities and reference standards

What is Bis valacyclovir?

Plain description, key identifiers and synonyms

Bis valacyclovir is a chemical substance with the molecular formula C27H40N12O8 and a molar mass of 660.69 g/mol. Its CAS registry number is 1356019-51-6. The IUPAC name is 2-[[2-[[[9-[2-[(2S)-2-amino-3-methylbutanoyl]oxyethoxymethyl]-6-oxo-1H-purin-2-yl]amino]methylamino]-6-oxo-1H-purin-9-yl]methoxy]ethyl (2S)-2-amino-3-methylbutanoate.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
2-[[2-[[[9-[2-[(2S)-2-amino-3-methylbutanoyl]oxyethoxymethyl]-6-oxo-1H-purin-2-yl]amino]methylamino]-6-oxo-1H-purin-9-yl]methoxy]ethyl (2S)-2-amino-3-methylbutanoate
CAS number
1356019-51-6 CAS number cross-checked
Molecular formula
C27H40N12O8
UNII
K43K3TFO2C
InChIKey
WLNNOXICHLWLAK-IRXDYDNUSA-N
InChI
InChI=1S/C27H40N12O8/c1-14(2)16(28)24(42)46-7-5-44-12-38-10-32-18-20(38)34-26(36-22(18)40)30-9-31-27-35-21-19(23(41)37-27)33-11-39(21)13-45-6-8-47-25(43)17(29)15(3)4/h10-11,14-17H,5-9,12-13,28-29H2,1-4H3,(H2,30,34,36,40)(H2,31,35,37,41)/t16-,17-/m0/s1
Canonical SMILES
CC(C)C(N)C(=O)OCCOCn1cnc2c(=O)[nH]c(NCNc3nc4c(ncn4COCCOC(=O)C(N)C(C)C)c(=O)[nH]3)nc21
Isomeric SMILES
CC(C)[C@@H](C(=O)OCCOCN1C=NC2=C1N=C(NC2=O)NCNC3=NC4=C(C(=O)N3)N=CN4COCCOC(=O)[C@H](C(C)C)N)N

Synonyms

  • Valaciclovir hydrochloride, anhydrous impurity P
  • 2,2'-(Methylenebis(imino(6-oxo-1,6-dihydro-9H-purine-9,2-diyl)methyleneoxy))diethyl di(L-valinate)
  • Valaciclovir hydrochloride hydrate impurity p
  • Valacyclovir hydrochloride, bis valacyclovir-(USP)
  • Valacyclovir hydrochloride, bis valacyclovir-
  • Valaciclovir hydrochloride hydrate impurity p (ep impurity)
  • Valacyclovir hydrochloride, bis valacyclovir-(usp impurity)
  • Valaciclovir hydrochloride, anhydrous impurity p (ep impurity)
  • Bis Valacyclovir (~90%)
  • Valaciclovir EP Impurity P
  • Valaciclovir impurity P CRS
  • Valaciclovir EP Impurity P(Valaciclovir Related Compound K)
  • ((((Methylenebis(azanediyl))bis(6-oxo-3,6-dihydro-9H-purine-2,9-diyl))bis(methylene))bis(oxy))bis(ethane-2,1-diyl) (2S,2'S)-bis(2-amino-3-methylbutanoate)
  • [({Methylenebis[azanediyl(6-oxo-3,6-dihydro-9H-purine-2,9-diyl)]methylene}oxy)ethane-2,1-diyl] bis[(2S)-2-amino-3-methylbutanoate]

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

No measured properties are recorded for this substance yet. Ask suppliers for a technical data sheet.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
660.69 g/molcalc.
Exact mass
660.3092 Dacalc.
LogP (octanol/water)
-0.96calc.
Topological polar surface area
274.3 Ųcalc.
Hydrogen bond donors
6calc.
Hydrogen bond acceptors
16calc.
Rotatable bonds
18calc.
Heavy atoms
47calc.
Rings
4calc.
Aromatic rings
4calc.
Fraction sp3 carbons
0.56calc.
Formal charge
0calc.
Stereocentres
2calc.
Lipinski rule of five
Fails (3 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Murcko scaffold

The ring system that remains when every side chain is removed

Murcko scaffold of this chemical, O=c1[nH]c(NCNc2nc3[nH]cnc3c(=O)[nH]2)nc2[nH]cnc12

O=c1[nH]c(NCNc2nc3[nH]cnc3c(=O)[nH]2)nc2[nH]cnc12

4 rings, 23 atoms.

4 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

No GHS hazard classification is recorded for this substance yet. That does not mean it is harmless.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Bis valacyclovir suppliers

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Bis valacyclovir price

Indicative price range per kg from live supplier offers

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Uses and applications

What the substance is used for, by industry and function

Applications are not documented for this substance yet. Suppliers often describe uses on their product pages, linked in the suppliers list above.

Regulatory status

Inventories, regulations and trade controls that list this substance

No regulatory list memberships are recorded for this substance yet. Always check the rules of the importing and exporting country before trade.

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Bis valacyclovir is traded under.

HS 2933.59Indicative HS code

Compounds containing a pyrimidine ring (whether or not hydrogenated) or piperazine ring, other

World exports in 2024
$18.4B
+10.5% vs 2023, imports $24.8B
2019 to 2024
Top exporters
  1. Ireland43.6%
  2. Switzerland * partner reported26.3%
  3. China7.9%
Top importers
  1. Slovenia30.3%
  2. United States30.1%
  3. Germany15.3%

* Partner reported figures, a lower bound.

Reported customs values in USD, not prices.Full trade data

The HS code shown for Bis valacyclovir is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Bis valacyclovir, based on the data on this page

What is Bis valacyclovir?

Bis valacyclovir is a chemical substance with the molecular formula C27H40N12O8 and a molar mass of 660.69 g/mol. Its CAS registry number is 1356019-51-6.

What is the CAS number of Bis valacyclovir?

The CAS registry number of Bis valacyclovir is 1356019-51-6.

What is the molecular formula and weight of Bis valacyclovir?

The molecular formula of Bis valacyclovir is C27H40N12O8 and its molar mass is 660.69 g/mol.

Is Bis valacyclovir hazardous?

No GHS hazard classification for Bis valacyclovir is recorded on CompoundList yet. That does not prove it is safe. Always read the supplier safety data sheet.

What is the HS code of Bis valacyclovir?

Bis valacyclovir is usually classified under HS code 293359 (Compounds containing a pyrimidine ring (whether or not hydrogenated) or piperazine ring…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Bis valacyclovir?

Post a free request on CompoundList and suppliers of Bis valacyclovir will send you quotes. Your contact details stay private until you accept a quote.

What is the price of Bis valacyclovir?

Suppliers quote Bis valacyclovir on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle Bis valacyclovir

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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