Molekula
DIDNTB
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
DIDNTB (5',5''-dinitro-3',3''-diiodo-3,4,5,6-tetrabromophenolsulfonephthalein) is a sulfonephthalein indicator dye derived from tetrabromophenol blue. It is used as a protein-error indicator for colorimetric detection of protein and albumin, for example in urine test strips. This chemical has a CAS number of 145551-16-2, with the molecular formula C19H6Br4I2N2O9S and a molecular weight of 1,011.75 g/mol. It requires refrigerated storage between 2 to 8°C and carries no signal word for hazard classification. Molekula supplies DIDNTB 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
Pack sizes & pricing
Pricing on request — packs available from research to bulk quantities.
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Specifications
| Property | Value |
|---|---|
| Appearance | Yellow Powder |
| Purity (HPLC) | ≥95.00% |
| Loss on Drying | ≤3.0% |
| Solubility | THF,DCM |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | 2 to 8 °C |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 90032168 |
| CAS Number | 145551-16-2 |
| IUPAC Name | 2-iodo-6-nitro-4-[4,5,6,7-tetrabromo-3-(4-hydroxy-3-iodo-5-nitrophenyl)-1,1-dioxo-2,1lambda6-benzoxathiol-3-yl]phenol |
| Molecular Formula | C19H6Br4I2N2O9S |
| Molecular Weight | 1,011.75 |
| Exact Mass | 1011.4576 |
| SMILES | C1=C(C=C(C(=C1[N+](=O)[O-])O)I)C2(C3=C(C(=C(C(=C3Br)Br)Br)Br)S(=O)(=O)O2)C4=CC(=C(C(=C4)I)O)[N+](=O)[O-] |
| InChIKey | NMHYCKTXIQQVPE-UHFFFAOYSA-N |
| InChI | InChI=1S/C19H6Br4I2N2O9S/c20-12-11-18(15(23)14(22)13(12)21)37(34,35)36-19(11,5-1-7(24)16(28)9(3-5)26(30)31)6-2-8(25)17(29)10(4-6)27(32)33/h1-4,28-29H |
| PubChem CID | 110204051 |
| REACH Code | Y110 |
| HTS Code | 2934.99.9001 |
| Tariff Code | 2934999090 |
Safety & GHS
Precautionary statements
- P280 Wear protective gloves/protective clothing/eye protection/face protection
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
- 5', 5"- dinotro-3', 3"- diiodo-3,4,5,6-tetrobromophenolsulfonephthalein
- 5',5'-Dinitro-3',3'-diiodo-3,4,5,6-trtrabromophenol-sulfonephthalein
- 5',5''-dinitro-3',3''-diiodo-3,4,5,6
- C19H6Br4I2N2O9S
Frequently asked questions
What is DIDNTB (CAS 145551-16-2) commonly used for?
DIDNTB is a sulfonephthalein protein-error indicator dye, a derivative of tetrabromophenol blue. It is used for colorimetric (absorbance-based) detection of protein and albumin, for example in urine test strips.
What is the molecular formula and molecular weight of DIDNTB?
The molecular formula is C₁₉H₆Br₄I₂N₂O₉S, and the molecular weight is 1,011.75 g/mol.
How should DIDNTB be stored?
Store DIDNTB at 2–8°C in a dark, dry place to prevent degradation from light or moisture.
What purity grades or forms of DIDNTB does Molekula supply?
Molekula supplies analytical-grade DIDNTB (typically ≥95% purity) as a solid powder or solution, depending on customer requirements.
Can Molekula supply DIDNTB in bulk quantities?
Yes, Molekula can provide bulk quantities of DIDNTB upon request, with flexible packaging options (e.g., bottles, vials, or custom containers).
What documentation is provided with a DIDNTB order?
Each order includes a Certificate of Analysis (CoA), Material Safety Data Sheet (MSDS), and batch-specific documentation for traceability and compliance.
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.