L-Tyrosine,O-(1,1-dimethylethyl)-, methyl ester, hydrochloride (1:1) , with the CAS register number 51482-39-4, has other names as H-TYR(TBU)-OME HCL, O-T-BUTYL-L-TYROSINE METHYL ESTER HYDROCHLORIDE , methyl O-tert-butyl-L-tyrosinate hydrochloride , and so on.

This kind of chemical belongs to the product categories of Amino Acids & Amino Acids Derivatives . Being a kind of irritant chemical, it is harmful to eyes and may cause sensitisation by skin contact. Besides, it may cause inflammation to the skin or other mucous. As for these properties, we need to be very cautious while using it. The first necessary thing is to wear suitable protective clothing and gloves. If in case of contact with eyes, rinse immediately with plenty of water and seek medical advice. You could also get more safety information from the WGK Germany  3. When you store it, remember to conserve it  at 2-8°C.

In addition, you could refer to the below information to obtain the molecular structure:
SMILES: Cl.O=C(OC)[C@@H](N)Cc1ccc(OC(C)(C)C)cc1
InChI: InChI=1/C14H21NO3.ClH/c1-14(2,3)18-11-7-5-10(6-8-11)9-12(15)13(16)17-4;/h5-8,12H,9,15H2,1-4H3;1H/t12-;/m0./s1
InChIKey: PAFVAMWJVIIMQK-YDALLXLXBN

As for its market information, you could find many suppliers in China, such as GL Biochem (Shanghai) Ltd which could provide this chemical with the packing of 10kg,1kg,500g,100g,25g.