Molekula
ADA (N-(-2-Acetamido)iminodiacetic acid)
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
ADA (N-(2-Acetamido)iminodiacetic acid) is a chelating agent used in metal ion complexation and biochemical research. It is one of Good's zwitterionic biological buffers, with a pKa of about 6.6, and is used for buffering in the pH range of about 6.0 to 7.2. Available with CAS number 26239-55-4, molecular formula H2NCOCH2N(CH2CO2H)2, and molecular weight 190.15 g/mol. Stored at ambient temperature. Signal word: Warning. Molekula supplies ADA from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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100 g — £60.40 per pack ex VAT · £72.48 inc. VAT
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500 g — £140.00 per pack ex VAT · £168.00 inc. VAT
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | White powder |
| Identification | Conforms to reference |
| Loss on Drying | ≤ 0.5% |
| Sulphated Ash | ≤ 0.1% |
| Iron (Fe) | ≤ 5ppm |
| Dissolution Time (9g in 91ml 1M NaOH, Magnetic Stirring) | ≤ 1min |
| Water (KF) | ≤ 1% |
| Lead (Pb) | ≤ 5ppm |
| Identification (IR) | Complies |
| Other Residual Solvents | None |
| A300 (9% in 1 M NaOH) | ≤ 0.08% |
| Number of endpoints Observed in the titration curve | Two only |
| pH Range that Defines the Titration Second Endpoint | 9.1 - 10.1 |
| Solubility (9% in 1M NaOH) | Clear and Colourless |
| Assay (Titration) on dried basis | ≥ 99.0% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Acid |
Identification
| Property | Value |
|---|---|
| SKU | 15676222 |
| CAS Number | 26239-55-4 |
| Molecular Formula | H2NCOCH2N(CH2CO2H)2 |
| Molecular Weight | 190.15 |
| SMILES | O=C(O)CN(CC(=O)O)CC(=O)N |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 2924.19.1150 |
| Tariff Code | 2924190090 |
Safety & GHS
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Health Hazard
GHS07
Hazard statements
- H302 Harmful if swallowed
Precautionary statements
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+312 IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell
- P308+313 IF exposed or concerned: Get medical advice/attention
Documents
Safety Data Sheets (SDS)
Available in English, English (US), French, German, Italian, Portuguese, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
No alternate names recorded for this product.
Frequently asked questions
What is ADA (N-(-2-Acetamido)iminodiacetic acid) used for?
ADA is primarily used as a Good's zwitterionic biological buffer for biochemical and cell-culture work in the pH range of about 6.0 to 7.2 (pKa about 6.6). It also binds metal ions, which should be considered when using it with metal-dependent systems.
What is the chemical formula and molecular weight of ADA?
The formula is H2NCOCH2N(CH2CO2H)2 and the molecular weight is 190.15 g/mol.
How should ADA be stored?
ADA should be stored at ambient temperature, protected from moisture and light.
What grade of ADA does Molekula supply?
Molekula supplies ADA in analytical grade.
Can Molekula supply ADA in bulk quantities?
Yes, Molekula can supply ADA in bulk quantities—please contact sales for pricing and availability.
What documentation comes with an order of ADA?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS) with the shipment.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.