KEY FEATURES & APPLICATIONS:• It contains an NHS ester that reacts with primary amines and a nitrophenylazide group that is photoreactive at 320-350 nm • Non-cleavable and irreversible• Membrane-impermeable• Amine-reactive; has a spacer arm length of 18.2 Å• More water-soluble than the corresponding SANPAH


SKU-Size2324-50 (Size: 50 mg)
2324-250 (Size: 250 mg)
Alternate Name Sulfo-SANPAH; Sulfo SANPAH; N-Sulfosuccinimidyl-6-(4'-azido-2'nitrophenylamino) hexanoate; nitrophenyl azide sulfo NHS ester; Sulfo-NHS-6-(4'-azido-2'nitrophenylamino)- hexanoate
Appearance Red orange solid
CAS # 102568-43-4
Molecular Formula C₁₆H₁₇N₆NaO₉S
Molecular Weight 492.4
Purity ≥90% by NMR
Solubility H₂O (~ 6 mg/ml)
SMILES O=S(C(C1)C(N(OC(CCCCCNC2=CC=C(N=[N+]=[N-])C=C2[N+]([O-])=O)=O)C1=O)=O)(O[Na])=O
InChi InChI=1S/C16H18N6O9S.Na/c17-20-19-10-5-6-11(12(8-10)22(26)27)18-7-3-1-2-4-15(24)31-21-14(23)9-13(16(21)25)32(28,29)30;/h5-6,8,13,18H,1-4,7,9H2,(H,28,29,30);/q;+1/p-1
PubChem CID 3035866
Handling Protect from moisture
Storage Conditions 4 ̊C
Shipping Conditions Gel Pack
USAGE For Research Use Only! Not For Use in Humans.


After I reconstitute the powder in water at 5mg/ml, how long can it be stored?
Reconstituted product can be stored at 4˚C protected from light for short term for a week. However, for long term storage we recommend storing the reconstituted product at -20˚C, protected from light.

Could you recommend storage conditions for powder and reconstituted powder?
Always protect the powder from light and moisture. Please allow the powder to come to RT before opening to reduce condensation inside the vial. Powder can be stored at 4˚C for short term and -20˚C for long term storage at -20˚C up to a year. Please keep it protected from moisture and light.
Reconstituted Solution - Only reconstitute what is necessary and any remaining can be stored at -20˚C. Reconstituted Solution should be aliquoted and avoid multiple freeze/thaw cycles. Fresh solution is recommended.

Ana C. Laly. The keratin network of intermediate filaments regulates keratinocyte rigidity sensing and nuclear mechanotransduction. Sci Adv. Jan 2021. PMC7840118.

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