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1.06447

tri-Sodium citrate dihydrate

EMPROVE® EXPERT, Ph. Eur., BP, ChP, JP, USP, ACS, E 331

Synonym(s):

Sodium citrate tribasic dihydrate, Trisodium Citrate, Sodium Citrate, Dihydrate, Citric acid trisodium salt dihydrate, Trisodium citrate dihydrate

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1 KG

$105.00

5 KG

$289.00

12 KG

$491.00

3 X 1 KG

$708.00

25 KG

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$105.00


Estimated to ship onDecember 19, 2025


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About This Item

Linear Formula:
HOC(COONa)(CH2COONa)2 · 2H2O
CAS Number:
Molecular Weight:
294.10
Beilstein/REAXYS Number:
6104939
MDL number:
UNSPSC Code:
12352107
E Number:
E331
EC Index Number:
200-675-3

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agency

BP
ChP
JP
Ph. Eur.
USP
suitable for SM 4500 - NH3

Quality Level

product line

EMPROVE® EXPERT

form

solid

feature

RNase and DNase free

impurities

endotoxins, low

pH

7.5-9.0 (25 °C, 50 g/L in H2O)

pKa 

(1) 3.1, (2) 4.8, (3) 6.4

mp

150 °C (anhydrous substance)
>300 °C (lit.)

application(s)

liquid formulation
ophthalmics
parenterals
pharma/biopharma processes
pharmaceutical
semi-solid formulation
solid formulation

storage temp.

2-30°C

SMILES string

O.O.[Na+].[Na+].[Na+].OC(CC([O-])=O)(CC([O-])=O)C([O-])=O

InChI

1S/C6H8O7.3Na.2H2O/c7-3(8)1-6(13,5(11)12)2-4(9)10;;;;;/h13H,1-2H2,(H,7,8)(H,9,10)(H,11,12);;;;2*1H2/q;3*+1;;/p-3

InChI key

NLJMYIDDQXHKNR-UHFFFAOYSA-K

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1 of 4

This Item
1.064321.06666PHR1416
application(s)

liquid formulation
ophthalmics
pharmaceutical
semi-solid formulation
solid formulation

application(s)

liquid formulation
ophthalmics
pharmaceutical
semi-solid formulation
solid formulation

application(s)

liquid formulation
parenterals
pharma/biopharma processes
pharmaceutical
solid formulation

application(s)

pharmaceutical (small molecule)

agency

BP, JP, USP, ChP, suitable for SM 4500 - NH3, Ph. Eur.

agency

BP, JP, Ph. Eur., USP

agency

BP, JP, Ph. Eur., USP

agency

traceable to USP 1613859

form

solid

form

crystalline, solid

form

solid

form

-

product line

EMPROVE® EXPERT

product line

EMPROVE® ESSENTIAL

product line

EMPROVE® API

product line

-

feature

RNase and DNase free

feature

-

feature

-

feature

-

pH

7.5-9.0 (25 °C, 50 g/L in H2O)

pH

7.5-9.0 (25 °C, 50 g/L in H2O)

pH

7.5-9.0 (25 °C, 50 g/L in H2O)

pH

-

General description

Finding the right excipient that matches your needs as well as regulatory demands can be a complicated challenge. With our application know-how and regulatory expertise, we support you in every step of development, scale-up, and production.
As part of our Emprove® Program, our raw materials are offered with extensive documentation facilitating compliance of your pharma and biopharma product, full supply chain transparency and risk mitigation. Our SAFC® portfolio of high-quality products for biopharmaceutical and pharmaceutical formulation and production withstands strict quality control procedures and is produced according to applicable cGMP guidelines.

Application

tri-Sodium citrate dihydrate is typically used as a citrate buffer system component for biomolecule downstream chromatography steps or final liquid formulation.

Legal Information

Emprove is a registered trademark of Merck KGaA, Darmstadt, Germany
SAFC is a registered trademark of Merck KGaA, Darmstadt, Germany

Storage Class

11 - Combustible Solids

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable


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