diff --git a/services/rfq/relayer/quoter/quoter.go b/services/rfq/relayer/quoter/quoter.go
index 564d671a53..2caa917140 100644
--- a/services/rfq/relayer/quoter/quoter.go
+++ b/services/rfq/relayer/quoter/quoter.go
@@ -75,12 +75,19 @@ func NewQuoterManager(config relconfig.Config, metricsHandler metrics.Handler, i
 	qt := make(map[string][]string)
 
 	// fix any casing issues.
-	for token, destTokens := range config.QuotableTokens {
-		processedDestTokens := make([]string, len(destTokens))
-		for i := range destTokens {
-			processedDestTokens[i] = strings.ToLower(destTokens[i])
+	for tokenID, destTokenIDs := range config.QuotableTokens {
+		processedDestTokens := make([]string, len(destTokenIDs))
+		for i := range destTokenIDs {
+			processedDestTokens[i], err = relconfig.SanitizeTokenID(destTokenIDs[i])
+			if err != nil {
+				return nil, fmt.Errorf("error sanitizing dest token ID: %w", err)
+			}
+		}
+		sanitizedID, err := relconfig.SanitizeTokenID(tokenID)
+		if err != nil {
+			return nil, fmt.Errorf("error sanitizing token ID: %w", err)
 		}
-		qt[strings.ToLower(token)] = processedDestTokens
+		qt[sanitizedID] = processedDestTokens
 	}
 
 	var ss client.ScreenerClient
@@ -140,7 +147,7 @@ func (m *Manager) ShouldProcess(parentCtx context.Context, quote reldb.QuoteRequ
 
 	// allowed pairs for this origin token on the destination
 	destPairs := m.quotableTokens[quote.GetOriginIDPair()]
-	if !(slices.Contains(destPairs, strings.ToLower(quote.GetDestIDPair()))) {
+	if !(slices.Contains(destPairs, quote.GetDestIDPair())) {
 		span.AddEvent(fmt.Sprintf("%s not in %s or %s not found", quote.GetDestIDPair(), strings.Join(destPairs, ", "), quote.GetOriginIDPair()))
 		return false, nil
 	}
@@ -250,8 +257,7 @@ func (m *Manager) generateQuotes(ctx context.Context, chainID int, address commo
 	var quotes []model.PutQuoteRequest
 	for keyTokenID, itemTokenIDs := range m.quotableTokens {
 		for _, tokenID := range itemTokenIDs {
-			// TODO: probably a better way to do this.
-			if strings.ToLower(tokenID) == strings.ToLower(destTokenID) {
+			if tokenID == destTokenID {
 				originStr := strings.Split(keyTokenID, "-")[0]
 				origin, err := strconv.Atoi(originStr)
 				if err != nil {
diff --git a/services/rfq/relayer/quoter/quoter_test.go b/services/rfq/relayer/quoter/quoter_test.go
index 2bf9799d74..ae4279d89a 100644
--- a/services/rfq/relayer/quoter/quoter_test.go
+++ b/services/rfq/relayer/quoter/quoter_test.go
@@ -28,7 +28,7 @@ func (s *QuoterSuite) TestGenerateQuotes() {
 	expectedQuotes := []model.PutQuoteRequest{
 		{
 			OriginChainID:   int(s.origin),
-			OriginTokenAddr: "0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48",
+			OriginTokenAddr: "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48",
 			DestChainID:     int(s.destination),
 			DestTokenAddr:   "0x0b2C639c533813f4Aa9D7837CAf62653d097Ff85",
 			DestAmount:      balance.String(),
diff --git a/services/rfq/relayer/relconfig/config.go b/services/rfq/relayer/relconfig/config.go
index 71ad2c43c5..52357396ba 100644
--- a/services/rfq/relayer/relconfig/config.go
+++ b/services/rfq/relayer/relconfig/config.go
@@ -5,6 +5,7 @@ import (
 	"fmt"
 	"math/big"
 	"os"
+	"strconv"
 	"strings"
 	"time"
 
@@ -114,6 +115,24 @@ type ChainFeeParams struct {
 	L1FeeDestGasEstimate int `yaml:"l1_fee_dest_gas_estimate"`
 }
 
+const tokenIDDelimiter = "-"
+
+// SanitizeTokenID takes a raw string, makes sure it is a valid token ID,
+// and returns the token ID as string with a checksummed address.
+func SanitizeTokenID(id string) (sanitized string, err error) {
+	split := strings.Split(id, tokenIDDelimiter)
+	if len(split) != 2 {
+		return sanitized, fmt.Errorf("invalid token ID: %s", id)
+	}
+	chainID, err := strconv.Atoi(split[0])
+	if err != nil {
+		return sanitized, fmt.Errorf("invalid chain ID: %s", split[0])
+	}
+	addr := common.HexToAddress(split[1])
+	sanitized = fmt.Sprintf("%d%s%s", chainID, tokenIDDelimiter, addr.Hex())
+	return sanitized, nil
+}
+
 // LoadConfig loads the config from the given path.
 func LoadConfig(path string) (config Config, err error) {
 	input, err := os.ReadFile(filepath.Clean(path))
@@ -222,8 +241,7 @@ func (c Config) GetTokenName(chain uint32, addr string) (string, error) {
 		return "", fmt.Errorf("no chain config for chain %d", chain)
 	}
 	for tokenName, tokenConfig := range chainConfig.Tokens {
-		// TODO: probably a better way to do this.
-		if strings.ToLower(tokenConfig.Address) == strings.ToLower(addr) {
+		if common.HexToAddress(tokenConfig.Address).Hex() == common.HexToAddress(addr).Hex() {
 			return tokenName, nil
 		}
 	}
@@ -335,7 +353,7 @@ func (c Config) GetMinQuoteAmount(chainID int, addr common.Address) *big.Int {
 
 	var tokenCfg *TokenConfig
 	for _, cfg := range chainCfg.Tokens {
-		if strings.EqualFold(cfg.Address, addr.String()) {
+		if common.HexToAddress(cfg.Address).Hex() == addr.Hex() {
 			cfgCopy := cfg
 			tokenCfg = &cfgCopy
 			break
diff --git a/services/rfq/relayer/reldb/db.go b/services/rfq/relayer/reldb/db.go
index 723cce855d..c3901f190e 100644
--- a/services/rfq/relayer/reldb/db.go
+++ b/services/rfq/relayer/reldb/db.go
@@ -5,7 +5,6 @@ import (
 	"database/sql/driver"
 	"errors"
 	"fmt"
-	"strings"
 
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/synapsecns/sanguine/core/dbcommon"
@@ -74,14 +73,14 @@ type QuoteRequest struct {
 // for some reason, this is specified as [chainid]-[tokenaddr] in the config.
 // this represents the origin pair.
 func (q QuoteRequest) GetOriginIDPair() string {
-	return strings.ToLower(fmt.Sprintf("%d-%s", q.Transaction.OriginChainId, q.Transaction.OriginToken.String()))
+	return fmt.Sprintf("%d-%s", q.Transaction.OriginChainId, q.Transaction.OriginToken.Hex())
 }
 
 // GetDestIDPair gets the destination chain id and token address pair.
 // for some reason, this is specified as [chainid]-[tokenaddr] in the config.
 // this represents the destination pair.
 func (q QuoteRequest) GetDestIDPair() string {
-	return strings.ToLower(fmt.Sprintf("%d-%s", q.Transaction.DestChainId, q.Transaction.DestToken.String()))
+	return fmt.Sprintf("%d-%s", q.Transaction.DestChainId, q.Transaction.DestToken.Hex())
 }
 
 // QuoteRequestStatus is the status of a quote request in the db.